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A124854 as a simple table

na(n)
12
27
311
417
529
631
737
843
959
1073
11109
12137
13191
14193
15197
16227
17239
18263
19269
20337
21367
22373
23401
24409
25449
26479
27499
28541
29557
30701
31743
32757
33823
34827
35857
36941
37983
38997
391033
401051
411109
421163
431303
441361
451471

[2,7,11,17,29,31,37,43,59,73,109,137,191,193,197,
 227,239,263,269,337,367,373,401,409,449,479,499,
 541,557,701,743,757,823,827,857,941,983,997,1033,
 1051,1109,1163,1303,1361,1471]