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A136054 as a simple table

na(n)
13
27
319
431
537
643
761
867
979
10103
11163
12193
13199
14211
15271
16277
17313
18331
19337
20367
21373
22379
23397
24421
25487
26499
27523
28547
29571
30577
31613
32673
33691
34709
35733
36757
37787
38823
39829
40859
41907
42919
43967
44991
45997
461033
471051
481117
491123
501129
511237
521249

[3,7,19,31,37,43,61,67,79,103,163,193,199,211,271,
 277,313,331,337,367,373,379,397,421,487,499,523,
 547,571,577,613,673,691,709,733,757,787,823,829,
 859,907,919,967,991,997,1033,1051,1117,1123,1129,
 1237,1249]