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A144919 as a simple table

na(n)
13
27
313
419
531
637
743
861
967
1073
1179
1297
13103
14109
15127
16139
17151
18157
19163
20181
21193
22199
23211
24223
25229
26241
27271
28277
29283
30307
31313
32331
33337
34349
35367
36373
37379
38397
39409
40421
41433
42439
43457
44463
45487
46499
47523
48541
49547
50571
51577
52601
53607
54613
55619

[3,7,13,19,31,37,43,61,67,73,79,97,103,109,127,
 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]