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A141585 as a simple table

na(n)
12
23
313
429
531
637
767
871
973
10139
11149
12197
13227
14229
15233
16241
17277
18331
19347
20431
21439
22467
23521
24547
25571
26587
27593
28743
29787
30797
31827
32859
33863
34877
35967
361031
371033
381109
391129
401153
411181
421277
431283
441297
451439
461451
471453
481523
491571
501583
511693

[2,3,13,29,31,37,67,71,73,139,149,197,227,229,233,
 241,277,331,347,431,439,467,521,547,571,587,593,
 743,787,797,827,859,863,877,967,1031,1033,1109,
 1129,1153,1181,1277,1283,1297,1439,1451,1453,1523,
 1571,1583,1693]