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A038878 as a simple table

na(n)
12
23
37
419
529
631
737
847
953
1059
1183
12103
13109
14113
15131
16137
17139
18149
19167
20193
21197
22199
23223
24227
25233
26251
27271
28277
29281
30283
31307
32311
33317
34337
35367
36373
37383
38389
39401
40419
41421
42439
43449
44457
45467

[2,3,7,19,29,31,37,47,53,59,83,103,109,113,131,
 137,139,149,167,193,197,199,223,227,233,251,271,
 277,281,283,307,311,317,337,367,373,383,389,401,
 419,421,439,449,457,467]