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A391802 as a simple table

na(n)
12
27
317
423
529
661
783
897
9101
10109
11113
12137
13149
14163
15181
16191
17197
18223
19227
20257
21269
22277
23281
24293
25317
26331
27337
28359
29397
30409
31421
32449
33479
34491
35521
36547
37557
38571
39593
40601
41617
42631
43641
44653
45709
46727
47739
48751
49797
50811
51827
52839
53857
54881

[2,7,17,23,29,61,83,97,101,109,113,137,149,163,
 181,191,197,223,227,257,269,277,281,293,317,331,
 337,359,397,409,421,449,479,491,521,547,557,571,
 593,601,617,631,641,653,709,727,739,751,797,811,
 827,839,857,881]