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A191051 as a simple table

na(n)
13
25
317
419
523
629
731
837
941
1047
1161
1279
1397
14103
15127
16131
17149
18157
19163
20167
21179
22193
23211
24227
25239
26271
27277
28281
29311
30331
31337
32347
33349
34353
35359
36367
37373
38389
39401
40419
41421
42431
43439
44467
45479
46487
47491
48499
49523
50569
51571
52587
53599
54617
55653

[3,5,17,19,23,29,31,37,41,47,61,79,97,103,127,131,
 149,157,163,167,179,193,211,227,239,271,277,281,
 311,331,337,347,349,353,359,367,373,389,401,419,
 421,431,439,467,479,487,491,499,523,569,571,587,
 599,617,653]