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A354155 as a simple table

na(n)
15
213
317
429
541
653
773
897
9137
10229
11241
12257
13281
14313
15397
16409
17449
18457
19461
20521
21541
22617
23653
24661
25677
26733
27769
28809
29853
30857
31929
32953
33997
341021
351069
361109
371201
381213
391217
401249
411277
421361
431373
441409
451489
461553
471597
481609
491621
501697

[5,13,17,29,41,53,73,97,137,229,241,257,281,313,
 397,409,449,457,461,521,541,617,653,661,677,733,
 769,809,853,857,929,953,997,1021,1069,1109,1201,
 1213,1217,1249,1277,1361,1373,1409,1489,1553,1597,
 1609,1621,1697]