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A051615 as a simple table

na(n)
15
211
317
423
529
641
747
853
971
1083
1189
12107
13113
14131
15137
16167
17173
18179
19191
20197
21227
22233
23239
24251
25257
26263
27281
28293
29317
30347
31359
32401
33419
34431
35443
36449
37467
38491
39509
40557
41569
42587
43593
44599
45617
46641
47647
48653
49659
50677
51683
52701
53719
54743

[5,11,17,23,29,41,47,53,71,83,89,107,113,131,137,
 167,173,179,191,197,227,233,239,251,257,263,281,
 293,317,347,359,401,419,431,443,449,467,491,509,
 557,569,587,593,599,617,641,647,653,659,677,683,
 701,719,743]