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A038904 as a simple table

na(n)
111
223
331
441
543
647
753
859
961
1067
1173
1279
1389
1497
15109
16131
17151
18163
19167
20173
21179
22181
23193
24197
25199
26229
27251
28263
29271
30281
31283
32293
33307
34313
35317
36337
37349
38383
39401
40419
41421
42433
43439
44449
45457

[11,23,31,41,43,47,53,59,61,67,73,79,89,97,109,
 131,151,163,167,173,179,181,193,197,199,229,251,
 263,271,281,283,293,307,313,317,337,349,383,401,
 419,421,433,439,449,457]