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A244638 as a simple table

na(n)
12
23
37
419
531
641
773
897
9193
10257
11313
12487
13859
14937
151249
162539
173331
183947
195351
205839
217963
229257
2312343
2421943
2531687
2645127
2760169
2878791
29115547
30180463
31213881
32234239
33270271
34376603
35875681
361023871
371252663
381564063
392585279
404063723
415649499
429973919
4311200681
4439824647
4541464303
4673583071
4795592191
48226588897
491359533387
502263333321
513349304527

[2,3,7,19,31,41,73,97,193,257,313,487,859,937,
 1249,2539,3331,3947,5351,5839,7963,9257,12343,
 21943,31687,45127,60169,78791,115547,180463,
 213881,234239,270271,376603,875681,1023871,
 1252663,1564063,2585279,4063723,5649499,9973919,
 11200681,39824647,41464303,73583071,95592191,
 226588897,1359533387,2263333321,3349304527]