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A074965 as a simple table

na(n)
15
217
329
441
561
673
797
8101
9113
10137
11149
12157
13181
14193
15197
16241
17269
18281
19313
20373
21401
22421
23433
24449
25457
26461
27521
28541
29569
30601
31617
32641
33673
34733
35769
36809
37821
38857
39881
40929
41937
42953
431009
441021
451033
461049
471061
481117
491201
501229
511277

[5,17,29,41,61,73,97,101,113,137,149,157,181,193,
 197,241,269,281,313,373,401,421,433,449,457,461,
 521,541,569,601,617,641,673,733,769,809,821,857,
 881,929,937,953,1009,1021,1033,1049,1061,1117,
 1201,1229,1277]