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A157884 as a simple table

na(n)
12
23
311
413
529
631
753
859
983
1097
11127
12137
13173
14191
15227
16241
17293
18307
19367
20383
21443
22463
23541
24557
25631
26653
27733
28757
29853
30877
31967
32997
331091
341123
351229
361277
371373
381409
391523
401567
411693
421723
431861
441901
452027
462081
472213
482267
492411
502459

[2,3,11,13,29,31,53,59,83,97,127,137,173,191,227,
 241,293,307,367,383,443,463,541,557,631,653,733,
 757,853,877,967,997,1091,1123,1229,1277,1373,1409,
 1523,1567,1693,1723,1861,1901,2027,2081,2213,2267,
 2411,2459]