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A267781 as a simple table

na(n)
117
231
347
461
5107
6137
7151
8167
9181
10197
11211
12227
13241
14257
15271
16287
17301
18317
19331
20347
21361
22377
23391
24407
25421
26437
27451
28467
29481
30497
31511
32527
33541
34557
35571
36587
37601
38617
39631
40647
41661
42677
43691
44707
45721
46737
47751
48767
49781
50797
51811
52827
53841
54857
55871
56887
57901
58917
59931
60947
61961
62977
63991
641007

[17,31,47,61,107,137,151,167,181,197,211,227,241,
 257,271,287,301,317,331,347,361,377,391,407,421,
 437,451,467,481,497,511,527,541,557,571,587,601,
 617,631,647,661,677,691,707,721,737,751,767,781,
 797,811,827,841,857,871,887,901,917,931,947,961,
 977,991,1007]