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A038901 as a simple table

na(n)
15
27
313
423
529
653
759
867
971
1083
11103
12107
13109
14139
15149
16151
17167
18173
19179
20181
21197
22199
23223
24227
25233
26239
27241
28257
29277
30281
31283
32313
33347
34349
35353
36373
37383
38397
39401
40419
41431
42439
43457
44463
45487
46499
47509
48521
49523
50547
51557
52571
53587
54593
55613

[5,7,13,23,29,53,59,67,71,83,103,107,109,139,149,
 151,167,173,179,181,197,199,223,227,233,239,241,
 257,277,281,283,313,347,349,353,373,383,397,401,
 419,431,439,457,463,487,499,509,521,523,547,557,
 571,587,593,613]