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A195354 as a simple table

na(n)
12
23
37
419
531
641
747
867
979
10139
11181
12229
13233
14277
15307
16383
17421
18463
19619
20643
21659
22691
23743
24967
251231
261483
271609
281931
292389
302719
312791
322953
332971
343079
353121
363217
373301
383319
393617
403719
413767

[2,3,7,19,31,41,47,67,79,139,181,229,233,277,307,
 383,421,463,619,643,659,691,743,967,1231,1483,
 1609,1931,2389,2719,2791,2953,2971,3079,3121,3217,
 3301,3319,3617,3719,3767]