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A002476 as a simple table

na(n)
17
213
319
431
537
643
761
867
973
1079
1197
12103
13109
14127
15139
16151
17157
18163
19181
20193
21199
22211
23223
24229
25241
26271
27277
28283
29307
30313
31331
32337
33349
34367
35373
36379
37397
38409
39421
40433
41439
42457
43463
44487
45499
46523
47541
48547
49571
50577
51601
52607
53613
54619

[7,13,19,31,37,43,61,67,73,79,97,103,109,127,139,
 151,157,163,181,193,199,211,223,229,241,271,277,
 283,307,313,331,337,349,367,373,379,397,409,421,
 433,439,457,463,487,499,523,541,547,571,577,601,
 607,613,619]