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A038974 as a simple table

na(n)
13
213
319
423
531
647
753
873
979
1089
11101
12103
13109
14113
15127
16131
17137
18163
19167
20173
21179
22181
23197
24211
25227
26229
27233
28239
29241
30257
31269
32271
33293
34311
35313
36317
37331
38347
39359
40367
41397
42409
43419
44431
45433

[3,13,19,23,31,47,53,73,79,89,101,103,109,113,127,
 131,137,163,167,173,179,181,197,211,227,229,233,
 239,241,257,269,271,293,311,313,317,331,347,359,
 367,397,409,419,431,433]