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Cunningham Chains

A Cunningham chain of the first kind begins with a Sophie Germain prime and ends with a safe prime. Sometimes a prime that is neither Sophie Germain nor safe is considered a Cunningham chain of length 0 or 1 (those are listed in Sloane's A059500).

Smallest initial term Cunningham Chain of length n

LengthChain
23, 7
341, 83, 167
4509, 1019, 2039, 4079
52, 5, 11, 23, 47
689, 179, 359, 719, 1439, 2879
71122659, 2245319, 4490639, 8981279, 17962559, 35925119, 71850239
819099919, 38199839, 76399679, 152799359, 305598719, 611197439, 1222394879, 2444789759

The first terms of the chains listed above form Sloane's A005602.

Cunningham Chains of length more than 3 with initial term less than 1293330

2, 5, 11, 23, 47
89, 179, 359, 719, 1439, 2879
509, 1019, 2039, 4079
1229, 2459, 4919, 9839
1409, 2819, 5639, 11279
2699, 5399, 10799, 21599
3539, 7079, 14159, 28319
6449, 12899, 25799, 51599
10589, 21179, 42359, 84719
11549, 23099, 46199, 92399
11909, 23819, 47639, 95279
12119, 24239, 48479, 96959
17159, 34319, 68639, 137279
19709, 39419, 78839, 157679
19889, 39779, 79559, 159119
22349, 44699, 89399, 178799
26189, 52379, 104759, 209519
27479, 54959, 109919, 219839
30389, 60779, 121559, 243119
43649, 87299, 174599, 349199
53639, 107279, 214559, 429119, 858239
53849, 107699, 215399, 430799, 861599
55229, 110459, 220919, 441839
57839, 115679, 231359, 462719
60149, 120299, 240599, 481199
61409, 122819, 245639, 491279, 982559
63419, 126839, 253679, 507359, 1014719, 2029439
66749, 133499, 266999, 533999, 1067999
71399, 142799, 285599, 571199
74699, 149399, 298799, 597599
75329, 150659, 301319, 602639
82499, 164999, 329999, 659999
87539, 175079, 350159, 700319
98369, 196739, 393479, 786959
101399, 202799, 405599, 811199
104369, 208739, 417479, 834959
112919, 225839, 451679, 903359
122099, 244199, 488399, 976799
127139, 254279, 508559, 1017119, 2034239, 4068479
139439, 278879, 557759, 1115519
143609, 287219, 574439, 1148879, 2297759
148829, 297659, 595319, 1190639
166739, 333479, 666959, 1333919
167729, 335459, 670919, 1341839, 2683679
167759, 335519, 671039, 1342079
175349, 350699, 701399, 1402799
186149, 372299, 744599, 1489199, 2978399
189929, 379859, 759719, 1519439
196769, 393539, 787079, 1574159
206369, 412739, 825479, 1650959, 3301919
210209, 420419, 840839, 1681679
227789, 455579, 911159, 1822319
229739, 459479, 918959, 1837919
232409, 464819, 929639, 1859279
234029, 468059, 936119, 1872239
235289, 470579, 941159, 1882319
238109, 476219, 952439, 1904879
244589, 489179, 978359, 1956719
253349, 506699, 1013399, 2026799
255149, 510299, 1020599, 2041199
257249, 514499, 1028999, 2057999
266369, 532739, 1065479, 2130959
268049, 536099, 1072199, 2144399, 4288799
279269, 558539, 1117079, 2234159
287849, 575699, 1151399, 2302799
296099, 592199, 1184399, 2368799, 4737599
299969, 599939, 1199879, 2399759
314339, 628679, 1257359, 2514719
321449, 642899, 1285799, 2571599
330329, 660659, 1321319, 2642639
334289, 668579, 1337159, 2674319
340919, 681839, 1363679, 2727359, 5454719
395189, 790379, 1580759, 3161519
396239, 792479, 1584959, 3169919
405269, 810539, 1621079, 3242159, 6484319, 12968639
413009, 826019, 1652039, 3304079
422069, 844139, 1688279, 3376559, 6753119
430649, 861299, 1722599, 3445199
433319, 866639, 1733279, 3466559
446609, 893219, 1786439, 3572879, 7145759
449129, 898259, 1796519, 3593039
452009, 904019, 1808039, 3616079
458729, 917459, 1834919, 3669839
471749, 943499, 1886999, 3773999
480059, 960119, 1920239, 3840479
480209, 960419, 1920839, 3841679
500729, 1001459, 2002919, 4005839
503969, 1007939, 2015879, 4031759
511859, 1023719, 2047439, 4094879
528509, 1057019, 2114039, 4228079
538019, 1076039, 2152079, 4304159
539009, 1078019, 2156039, 4312079, 8624159
541529, 1083059, 2166119, 4332239
577169, 1154339, 2308679, 4617359
579539, 1159079, 2318159, 4636319
579569, 1159139, 2318279, 4636559
588509, 1177019, 2354039, 4708079
594449, 1188899, 2377799, 4755599, 9511199
601949, 1203899, 2407799, 4815599
607319, 1214639, 2429279, 4858559, 9717119
610409, 1220819, 2441639, 4883279
639959, 1279919, 2559839, 5119679
641969, 1283939, 2567879, 5135759
643949, 1287899, 2575799, 5151599
655289, 1310579, 2621159, 5242319
658349, 1316699, 2633399, 5266799, 10533599
661889, 1323779, 2647559, 5295119
671249, 1342499, 2684999, 5369999, 10739999
675539, 1351079, 2702159, 5404319
698339, 1396679, 2793359, 5586719
704309, 1408619, 2817239, 5634479
709589, 1419179, 2838359, 5676719
712199, 1424399, 2848799, 5697599
725009, 1450019, 2900039, 5800079, 11600159
731729, 1463459, 2926919, 5853839
743069, 1486139, 2972279, 5944559
751529, 1503059, 3006119, 6012239
775949, 1551899, 3103799, 6207599, 12415199
807749, 1615499, 3230999, 6461999
810809, 1621619, 3243239, 6486479, 12972959, 25945919
812849, 1625699, 3251399, 6502799, 13005599
819509, 1639019, 3278039, 6556079, 13112159
840179, 1680359, 3360719, 6721439
849839, 1699679, 3399359, 6798719
855269, 1710539, 3421079, 6842159
865829, 1731659, 3463319, 6926639
888389, 1776779, 3553559, 7107119
907589, 1815179, 3630359, 7260719
916109, 1832219, 3664439, 7328879
926669, 1853339, 3706679, 7413359, 14826719
934259, 1868519, 3737039, 7474079
956909, 1913819, 3827639, 7655279
960299, 1920599, 3841199, 7682399
964049, 1928099, 3856199, 7712399
968729, 1937459, 3874919, 7749839
974819, 1949639, 3899279, 7798559
978179, 1956359, 3912719, 7825439
985109, 1970219, 3940439, 7880879
1008209, 2016419, 4032839, 8065679, 16131359
1021199, 2042399, 4084799, 8169599
1030619, 2061239, 4122479, 8244959
1041329, 2082659, 4165319, 8330639
1043369, 2086739, 4173479, 8346959
1063649, 2127299, 4254599, 8509199
1065269, 2130539, 4261079, 8522159
1069199, 2138399, 4276799, 8553599, 17107199, 34214399
1092089, 2184179, 4368359, 8736719, 17473439
1098479, 2196959, 4393919, 8787839
1103309, 2206619, 4413239, 8826479
1109639, 2219279, 4438559, 8877119
1121369, 2242739, 4485479, 8970959
1122449, 2244899, 4489799, 8979599
1122659, 2245319, 4490639, 8981279, 17962559, 35925119, 71850239
1132949, 2265899, 4531799, 9063599, 18127199
1138829, 2277659, 4555319, 9110639
1144889, 2289779, 4579559, 9159119
1157099, 2314199, 4628399, 9256799
1178609, 2357219, 4714439, 9428879, 18857759, 37715519
1186049, 2372099, 4744199, 9488399
1193369, 2386739, 4773479, 9546959
1202429, 2404859, 4809719, 9619439
1210169, 2420339, 4840679, 9681359
1218779, 2437559, 4875119, 9750239
1237919, 2475839, 4951679, 9903359
1247189, 2494379, 4988759, 9977519
1256369, 2512739, 5025479, 10050959
1259129, 2518259, 5036519, 10073039
1269179, 2538359, 5076719, 10153439
1271849, 2543699, 5087399, 10174799, 20349599
1290209, 2580419, 5160839, 10321679
1293329, 2586659, 5173319, 10346639

All Cunningham Chains with initial term less than 104730

2, 5, 11, 23, 47
3, 7
29, 59
41, 83, 167
53, 107
89, 179, 359, 719, 1439, 2879
113, 227
131, 263
173, 347
191, 383
233, 467
239, 479
251, 503
281, 563
293, 587
419, 839
431, 863
443, 887
491, 983
509, 1019, 2039, 4079
593, 1187
641, 1283
653, 1307
659, 1319
683, 1367
743, 1487
761, 1523
809, 1619
911, 1823
953, 1907
1013, 2027
1031, 2063, 4127
1049, 2099
1103, 2207
1223, 2447
1229, 2459, 4919, 9839
1289, 2579
1409, 2819, 5639, 11279
1451, 2903, 5807
1481, 2963, 5927
1499, 2999
1511, 3023, 6047
1559, 3119
1583, 3167
1601, 3203
1733, 3467
1811, 3623, 7247
1889, 3779, 7559
1901, 3803, 7607
1931, 3863, 7727
1973, 3947
2003, 4007
2069, 4139
2129, 4259
2141, 4283
2273, 4547
2339, 4679
2351, 4703
2393, 4787
2399, 4799
2543, 5087
2549, 5099
2693, 5387
2699, 5399, 10799, 21599
2741, 5483
2753, 5507
2939, 5879
2969, 5939
3299, 6599
3329, 6659
3359, 6719
3389, 6779
3413, 6827
3449, 6899, 13799
3491, 6983, 13967
3539, 7079, 14159, 28319
3593, 7187
3761, 7523
3821, 7643, 15287
3851, 7703
3911, 7823, 15647
4019, 8039
4073, 8147
4211, 8423
4271, 8543
4349, 8699
4373, 8747
4391, 8783
4409, 8819
4481, 8963
4733, 9467
4793, 9587
4871, 9743
4943, 9887
5003, 10007
5039, 10079
5051, 10103
5081, 10163, 20327
5171, 10343
5231, 10463
5279, 10559
5303, 10607
5333, 10667
5441, 10883, 21767
5501, 11003
5711, 11423
5741, 11483
5849, 11699, 23399
5903, 11807
6053, 12107
6101, 12203, 24407
6113, 12227
6131, 12263, 24527
6173, 12347
6263, 12527
6269, 12539
6323, 12647
6329, 12659
6449, 12899, 25799, 51599
6491, 12983
6521, 13043
6551, 13103
6563, 13127
6581, 13163
6761, 13523
7043, 14087
7103, 14207
7121, 14243
7151, 14303, 28607
7193, 14387
7211, 14423
7349, 14699, 29399
7433, 14867
7541, 15083
7649, 15299
7691, 15383
7841, 15683
7883, 15767
7901, 15803, 31607
8069, 16139
8093, 16187
8111, 16223
8243, 16487
8273, 16547
8513, 17027
8663, 17327
8693, 17387
8741, 17483
8951, 17903
8969, 17939, 35879
9029, 18059
9059, 18119
9221, 18443, 36887
9293, 18587
9371, 18743
9419, 18839
9473, 18947
9479, 18959
9539, 19079
9629, 19259
9689, 19379
9791, 19583
10061, 20123
10091, 20183
10253, 20507
10271, 20543
10313, 20627
10331, 20663
10529, 21059
10589, 21179, 42359, 84719
10613, 21227
10691, 21383, 42767
10709, 21419, 42839
10733, 21467
10781, 21563
11171, 22343, 44687
11321, 22643
11369, 22739
11393, 22787
11471, 22943, 45887
11519, 23039
11549, 23099, 46199, 92399
11579, 23159
11783, 23567
11801, 23603, 47207
11813, 23627
11831, 23663
11909, 23819, 47639, 95279
11939, 23879
12011, 24023
12041, 24083
12101, 24203, 48407
12119, 24239, 48479, 96959
12329, 24659
12653, 25307
12671, 25343
12791, 25583
12821, 25643, 51287
12923, 25847
12959, 25919, 51839
13001, 26003
13049, 26099
13229, 26459, 52919
13313, 26627
13451, 26903
13463, 26927
13553, 27107
13619, 27239
13649, 27299
13763, 27527
13883, 27767
13901, 27803
13913, 27827
14009, 28019, 56039
14081, 28163
14153, 28307
14249, 28499, 56999
14321, 28643, 57287
14489, 28979
14561, 29123
14621, 29243
14669, 29339, 58679
14741, 29483, 58967
14783, 29567
14831, 29663
14879, 29759
14939, 29879
15101, 30203
15161, 30323, 60647
15173, 30347
15233, 30467
15269, 30539
15401, 30803
15569, 31139
15629, 31259
15773, 31547
15791, 31583
15923, 31847
16001, 32003, 64007
16091, 32183
16253, 32507
16301, 32603
16421, 32843, 65687
16493, 32987
16553, 33107
16673, 33347
16811, 33623, 67247
16823, 33647
16883, 33767
16931, 33863
17159, 34319, 68639, 137279
17183, 34367
17291, 34583
17333, 34667
17351, 34703
17579, 35159
17669, 35339
17681, 35363
17981, 35963
18041, 36083, 72167
18131, 36263
18149, 36299
18191, 36383, 72767
18233, 36467
18341, 36683
18461, 36923, 73847
18731, 37463
18773, 37547
18803, 37607
18899, 37799
19163, 38327
19301, 38603
19319, 38639, 77279
19373, 38747
19391, 38783
19433, 38867
19553, 39107
19559, 39119
19661, 39323
19709, 39419, 78839, 157679
19751, 39503
19889, 39779, 79559, 159119
19913, 39827
19919, 39839
19991, 39983, 79967
20063, 40127
20249, 40499
20369, 40739
20393, 40787
20411, 40823, 81647
20441, 40883
20693, 41387
20753, 41507
20759, 41519
20771, 41543
20789, 41579
20879, 41759
20921, 41843
20939, 41879
20963, 41927
21011, 42023, 84047
21089, 42179
21149, 42299
21221, 42443
21341, 42683
21611, 43223
21701, 43403
21713, 43427
21803, 43607
21893, 43787
22013, 44027
22079, 44159
22133, 44267
22259, 44519
22271, 44543, 89087
22349, 44699, 89399, 178799
22409, 44819
22433, 44867
22469, 44939
22481, 44963
22541, 45083
22751, 45503
22853, 45707
23279, 46559
23321, 46643, 93287
23339, 46679
23459, 46919
23561, 47123
23669, 47339
23753, 47507
23909, 47819
23981, 47963
24281, 48563, 97127
24473, 48947
24509, 49019
24551, 49103, 98207
24611, 49223
24683, 49367
24749, 49499, 98999
24971, 49943
25073, 50147
25229, 50459
25523, 51047
25601, 51203, 102407
25673, 51347
25703, 51407
25841, 51683
25913, 51827
26111, 52223
26189, 52379, 104759, 209519
26501, 53003
26573, 53147
26633, 53267
26849, 53699
26879, 53759
26891, 53783
26993, 53987
27143, 54287
27281, 54563
27479, 54959, 109919, 219839
27539, 55079
27551, 55103
27581, 55163
27743, 55487
27773, 55547
27809, 55619
27893, 55787
27983, 55967
28001, 56003
28403, 56807
28559, 57119
28571, 57143
28751, 57503
28793, 57587
28859, 57719
28901, 57803
28949, 57899
28961, 57923
29021, 58043
29033, 58067
29201, 58403
29363, 58727
29453, 58907
29531, 59063, 118127
29723, 59447
29873, 59747
30269, 60539
30389, 60779, 121559, 243119
30449, 60899
30671, 61343
30689, 61379
30773, 61547
30851, 61703, 123407
30983, 61967
31019, 62039
31151, 62303
31253, 62507
31319, 62639
31469, 62939
31649, 63299
31721, 63443
31793, 63587
31799, 63599
31859, 63719
32009, 64019
32141, 64283
32159, 64319
32381, 64763, 129527
32531, 65063, 130127
32561, 65123
32573, 65147
32633, 65267
32771, 65543
32789, 65579
32933, 65867
33023, 66047
33053, 66107
33119, 66239
33179, 66359
33191, 66383
33461, 66923
33479, 66959, 133919
33521, 67043, 134087
33569, 67139
33713, 67427
33749, 67499, 134999
33773, 67547
33809, 67619
33941, 67883
34253, 68507
34283, 68567
34439, 68879
34631, 69263
34883, 69767
34913, 69827
34949, 69899
35069, 70139
35081, 70163
35099, 70199
35111, 70223
35291, 70583
35573, 71147
35831, 71663
35933, 71867
35993, 71987
35999, 71999, 143999
36191, 72383
36251, 72503, 145007
36353, 72707
36479, 72959
36563, 73127
36629, 73259, 146519
36761, 73523, 147047
36791, 73583
36821, 73643
36929, 73859
37013, 74027
37049, 74099, 148199
37139, 74279
37181, 74363, 148727
37253, 74507
37379, 74759, 149519
37619, 75239
37853, 75707
37871, 75743
37991, 75983, 151967
38039, 76079
38183, 76367
38189, 76379
38201, 76403
38231, 76463
38303, 76607
38333, 76667
38453, 76907
38459, 76919
38501, 77003
38669, 77339
38723, 77447
38861, 77723
38873, 77747
38891, 77783
38933, 77867
39089, 78179
39233, 78467
39239, 78479
39443, 78887
39521, 79043
39551, 79103
39569, 79139
39659, 79319
39953, 79907
39971, 79943
39989, 79979
40193, 80387
40283, 80567
40343, 80687
40559, 81119
40763, 81527
40853, 81707
40949, 81899
41081, 82163
41231, 82463
41243, 82487
41381, 82763, 165527
41399, 82799
41603, 83207
41609, 83219
41621, 83243, 166487
41669, 83339, 166679
41729, 83459, 166919
41969, 83939, 167879
42071, 84143
42089, 84179
42131, 84263, 168527
42221, 84443, 168887
42473, 84947
42611, 85223, 170447
42719, 85439
42743, 85487
42821, 85643
42923, 85847
43013, 86027
43313, 86627
43391, 86783
43541, 87083
43649, 87299, 174599, 349199
43661, 87323
43691, 87383, 174767
43721, 87443
43793, 87587
43943, 87887
44111, 88223
44129, 88259
44189, 88379
44249, 88499
44273, 88547
44501, 89003
44651, 89303
44729, 89459
44879, 89759, 179519
44909, 89819
45053, 90107
45119, 90239
45131, 90263
45179, 90359
45263, 90527
45329, 90659
45569, 91139, 182279
45599, 91199
45641, 91283
45971, 91943
46181, 92363, 184727
46229, 92459
46349, 92699
46523, 93047
46589, 93179
46619, 93239, 186479
46691, 93383
46703, 93407
46751, 93503
47189, 94379
47279, 94559
47363, 94727
47501, 95003
47513, 95027
47543, 95087
47609, 95219
47741, 95483
48029, 96059
48131, 96263
48221, 96443, 192887
48239, 96479
48413, 96827
48593, 97187
48731, 97463
48761, 97523, 195047
49193, 98387
49253, 98507
49331, 98663
49433, 98867
49463, 98927
49481, 98963, 197927
49559, 99119
49811, 99623, 199247
49853, 99707
49919, 99839, 199679
50021, 100043, 200087
50051, 100103
50261, 100523
50273, 100547
50411, 100823
50423, 100847
50513, 101027
50591, 101183
50741, 101483, 202967
50873, 101747
50969, 101939
50993, 101987
51503, 103007
51521, 103043
51539, 103079
51659, 103319, 206639
51893, 103787
52103, 104207
52121, 104243
52163, 104327
52289, 104579, 209159
52361, 104723
52511, 105023
52553, 105107
52571, 105143
52583, 105167
52631, 105263, 210527
52733, 105467
52883, 105767
53051, 106103, 212207
53093, 106187
53309, 106619
53411, 106823
53453, 106907
53549, 107099
53591, 107183
53639, 107279, 214559, 429119, 858239
53849, 107699, 215399, 430799, 861599
53951, 107903
54011, 108023
54101, 108203
54251, 108503
54293, 108587
54401, 108803
54413, 108827
54443, 108887
54773, 109547
54941, 109883, 219767
55229, 110459, 220919, 441839
55439, 110879
55469, 110939
55631, 111263, 222527
55661, 111323, 222647
55673, 111347
55721, 111443
55733, 111467
55799, 111599
55829, 111659, 223319
55889, 111779
55931, 111863
56009, 112019
56081, 112163, 224327
56099, 112199
56123, 112247
56393, 112787
56489, 112979
56519, 113039
56531, 113063
56663, 113327
56681, 113363
56783, 113567
56891, 113783, 227567
56909, 113819
56921, 113843
56951, 113903
57041, 114083
57149, 114299
57203, 114407
57329, 114659
57413, 114827
57773, 115547
57839, 115679, 231359, 462719
57881, 115763
58013, 116027
58049, 116099
58193, 116387
58211, 116423, 232847
58451, 116903
58511, 117023
58601, 117203
58889, 117779, 235559
58979, 117959, 235919
59021, 118043, 236087
59123, 118247
59369, 118739
59393, 118787
59399, 118799
59453, 118907
59513, 119027
59621, 119243
59723, 119447
59879, 119759
59981, 119963
60083, 120167
60149, 120299, 240599, 481199
60251, 120503
60293, 120587
60383, 120767
60449, 120899
60509, 121019
60689, 121379
60719, 121439
60761, 121523
60773, 121547
61331, 122663
61409, 122819, 245639, 491279, 982559
61469, 122939
61751, 123503, 247007
61961, 123923, 247847
61991, 123983
62099, 124199
62171, 124343
62213, 124427
62351, 124703
62423, 124847
62459, 124919
62501, 125003, 250007
62591, 125183
62603, 125207
62753, 125507
62819, 125639
62981, 125963
63113, 126227
63179, 126359
63419, 126839, 253679, 507359, 1014719, 2029439
63671, 127343
63743, 127487
63803, 127607
63839, 127679
63863, 127727
63929, 127859
64301, 128603
64373, 128747
64439, 128879
64451, 128903
64709, 129419
64793, 129587
64853, 129707
64901, 129803
65099, 130199, 260399
65111, 130223
65129, 130259
65171, 130343
65183, 130367
65309, 130619
65393, 130787
65633, 131267
65651, 131303
65843, 131687
65963, 131927
66029, 132059
66173, 132347
66191, 132383
66431, 132863
66593, 133187
66701, 133403
66749, 133499, 266999, 533999, 1067999
66791, 133583, 267167
67103, 134207
67121, 134243, 268487
67169, 134339
67181, 134363
67349, 134699
67433, 134867
67559, 135119, 270239
67733, 135467
67943, 135887
68111, 136223
68171, 136343
68261, 136523, 273047
68279, 136559
68489, 136979
68543, 137087
68669, 137339, 274679
68699, 137399
68819, 137639
68963, 137927
69029, 138059
69119, 138239
69203, 138407
69341, 138683
69431, 138863
69539, 139079
69593, 139187
69809, 139619
69941, 139883, 279767
70061, 140123
70079, 140159
70181, 140363
70313, 140627
70379, 140759
70589, 141179
70769, 141539, 283079
70793, 141587
70853, 141707
70901, 141803, 283607
70979, 141959
71399, 142799, 285599, 571199
71453, 142907
71693, 143387
71741, 143483
71843, 143687
71849, 143699
72101, 144203
72161, 144323, 288647
72269, 144539
72911, 145823, 291647
73421, 146843
73553, 147107
73589, 147179
73613, 147227
73673, 147347
73709, 147419
73751, 147503, 295007
73823, 147647
74201, 148403
74219, 148439
74381, 148763
74699, 149399, 298799, 597599
74729, 149459
74771, 149543, 299087
74933, 149867
75041, 150083
75149, 150299
75161, 150323, 300647
75329, 150659, 301319, 602639
75353, 150707
75389, 150779
75479, 150959
75503, 151007
75689, 151379, 302759
75821, 151643, 303287
75833, 151667
75941, 151883, 303767
76001, 152003
76031, 152063, 304127
76091, 152183
76259, 152519
76283, 152567
76421, 152843
76679, 153359
76781, 153563
76871, 153743
76943, 153887
77243, 154487
77261, 154523
77471, 154943
77513, 155027
77543, 155087
77699, 155399
77711, 155423
77813, 155627
77849, 155699
78059, 156119
78173, 156347
78233, 156467
78311, 156623
78341, 156683
78509, 157019
78623, 157247
78653, 157307
78713, 157427
78779, 157559
79151, 158303
79181, 158363
79259, 158519
79283, 158567
79349, 158699, 317399
79379, 158759
79433, 158867
79589, 159179
79613, 159227
79769, 159539
79811, 159623
79841, 159683
79889, 159779
80039, 160079
80309, 160619, 321239
80369, 160739
80651, 161303, 322607
80669, 161339
80681, 161363, 322727
80819, 161639
81071, 162143
81131, 162263
81281, 162563
81509, 163019
81563, 163127
81611, 163223
81629, 163259
81701, 163403
81839, 163679
81929, 163859
82073, 164147
82139, 164279
82193, 164387
82223, 164447
82493, 164987
82499, 164999, 329999, 659999
82529, 165059
82601, 165203
82721, 165443, 330887
82793, 165587
82889, 165779
83399, 166799
83423, 166847
83579, 167159, 334319
83813, 167627
83873, 167747
84011, 168023
84131, 168263, 336527
84299, 168599
84401, 168803, 337607
84431, 168863
84449, 168899
84503, 169007
84509, 169019
84533, 169067
84629, 169259
84653, 169307
84659, 169319
84713, 169427
84761, 169523
85049, 170099
85061, 170123
85103, 170207
85121, 170243
85133, 170267
85313, 170627
85523, 171047
85601, 171203
85691, 171383
85733, 171467
85829, 171659
85853, 171707
85931, 171863, 343727
86111, 172223
86171, 172343
86291, 172583
86441, 172883
86771, 173543
86843, 173687
87071, 174143, 348287
87149, 174299
87221, 174443
87539, 175079, 350159, 700319
87701, 175403
87959, 175919
88079, 176159
88463, 176927
88661, 177323, 354647
88811, 177623
88919, 177839, 355679
89051, 178103
89123, 178247
89153, 178307
89909, 179819
90011, 180023
90089, 180179
90173, 180347
90281, 180563
90599, 181199
90641, 181283
90749, 181499
90803, 181607
90833, 181667
90971, 181943, 363887
91079, 182159
91121, 182243
91193, 182387
91373, 182747
91433, 182867
91463, 182927
91499, 182999
91529, 183059
91583, 183167
91631, 183263
91691, 183383
91841, 183683
92003, 184007
92243, 184487
92681, 185363
92849, 185699
92861, 185723, 371447
92951, 185903
92993, 185987
93053, 186107
93059, 186119
93113, 186227
93323, 186647
93371, 186743, 373487
93479, 186959
93563, 187127
93581, 187163
93683, 187367
93893, 187787
93911, 187823, 375647
93941, 187883
94079, 188159
94151, 188303
94229, 188459
94343, 188687
94421, 188843, 377687
94463, 188927
95261, 190523, 381047
95393, 190787
95549, 191099
95561, 191123
95723, 191447
95789, 191579
95813, 191627
95873, 191747
95891, 191783
96269, 192539, 385079
96293, 192587
96461, 192923
96581, 193163
96731, 193463, 386927
96779, 193559
96851, 193703
96989, 193979
97001, 194003
97241, 194483
97511, 195023
97829, 195659
97871, 195743, 391487
97931, 195863
97943, 195887
98123, 196247
98321, 196643, 393287
98369, 196739, 393479, 786959
98453, 196907
98459, 196919
98561, 197123
98573, 197147
98621, 197243
98639, 197279
98669, 197339
98711, 197423
98849, 197699
98981, 197963
99023, 198047
99041, 198083
99089, 198179
99173, 198347
99251, 198503
99551, 199103, 398207
99689, 199379, 398759
99761, 199523
100361, 200723
100403, 200807
100493, 200987
100559, 201119, 402239
100799, 201599
100811, 201623
100913, 201827
101063, 202127
101333, 202667
101399, 202799, 405599, 811199
101411, 202823
101429, 202859, 405719
101603, 203207
101681, 203363
101693, 203387
101789, 203579
101921, 203843
101999, 203999
102023, 204047
102071, 204143
102149, 204299
102293, 204587
102299, 204599
102359, 204719
102461, 204923
102551, 205103
102593, 205187
102611, 205223
102653, 205307
102881, 205763, 411527
102911, 205823
102983, 205967
103091, 206183
103349, 206699
103391, 206783
103409, 206819
103613, 207227
103619, 207239
103643, 207287
104033, 208067
104183, 208367
104231, 208463
104369, 208739, 417479, 834959
104393, 208787
104399, 208799
104561, 209123
104729, 209459

Thanks to Alonso Delarte, whose Mathematica function made the task of compiling these tables a piece of cake. The function is:

Cunningham[x_] := Module[{a}, If[Not[PrimeQ[x]], Return[{}]]; chain = {x}; a = 2x + 1; While[PrimeQ[a], chain = {chain, a}; a = 2a + 1]; a = (x - 1)/2; While[PrimeQ[a], chain = {a, chain}; a = (a - 1)/2]; Flatten[chain]]

This function responds with the appropriate Cunningham chain for any prime regardless of its position within the chain. To compile these tables I only needed to give first terms, but the function's ability to find chains regardless of the given prime's position has proved useful to me in other contexts.

And thanks to Anton Mravcek for suggesting that I compile these tables.