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A230227 as a simple table

na(n)
15
27
311
413
517
619
723
831
937
1041
1147
1253
1359
1461
1567
1679
1783
1889
1997
20101
21107
22109
23131
24137
25151
26157
27163
28167
29173
30191
31193
32199
33223
34229
35251
36257
37269
38277
39283
40307
41313
42317
43331
44347
45353
46367
47373
48397
49401
50409

[5,7,11,13,17,19,23,31,37,41,47,53,59,61,67,79,83,
 89,97,101,107,109,131,137,151,157,163,167,173,191,
 193,199,223,229,251,257,269,277,283,307,313,317,
 331,347,353,367,373,397,401,409]