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A045377 as a simple table

na(n)
12
27
313
423
537
641
779
883
997
10107
11139
12149
13163
14167
15181
16191
17223
18233
19251
20293
21307
22317
23331
24349
25359
26373
27401
28419
29433
30443
31457
32461
33499
34503
35541
36569
37587
38601
39643
40653
41709
42727
43751
44769
45797

[2,7,13,23,37,41,79,83,97,107,139,149,163,167,181,
 191,223,233,251,293,307,317,331,349,359,373,401,
 419,433,443,457,461,499,503,541,569,587,601,643,
 653,709,727,751,769,797]