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A250173 as a simple table

na(n)
12
25
37
413
529
631
747
853
961
1073
1189
12103
13257
14349
15521
16607
17821
18907
191283
204057
216329
227451
238039
2412457
2530689
2641257
2763809
2874521
2980369

[2,5,7,13,29,31,47,53,61,73,89,103,257,349,521,
 607,821,907,1283,4057,6329,7451,8039,12457,30689,
 41257,63809,74521,80369]