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A191030 as a simple table

na(n)
12
25
323
431
537
643
759
861
973
1083
11103
12107
13113
14127
15131
16139
17163
18173
19197
20223
21241
22251
23269
24271
25277
26283
27307
28337
29349
30353
31359
32367
33373
34379
35389
36401
37409
38419
39431
40433
41443
42449
43461
44467
45487
46491
47523
48541
49569
50599
51607
52613
53617
54619

[2,5,23,31,37,43,59,61,73,83,103,107,113,127,131,
 139,163,173,197,223,241,251,269,271,277,283,307,
 337,349,353,359,367,373,379,389,401,409,419,431,
 433,443,449,461,467,487,491,523,541,569,599,607,
 613,617,619]