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A283391 as a simple table

na(n)
15
213
317
429
537
653
761
873
997
10109
11113
12137
13149
14181
15193
16197
17229
18233
19277
20293
21313
22317
23337
24349
25401
26421
27449
28457
29461
30521
31541
32569
33613
34641
35653
36673
37677
38701
39709
40757
41809
42821
43853
44877
45929
46941
47977
48997
491009
501021
511049
521061
531069
541093
551117

[5,13,17,29,37,53,61,73,97,109,113,137,149,181,
 193,197,229,233,277,293,313,317,337,349,401,421,
 449,457,461,521,541,569,613,641,653,673,677,701,
 709,757,809,821,853,877,929,941,977,997,1009,1021,
 1049,1061,1069,1093,1117]