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A215907 as a simple table

na(n)
11
23
37
413
519
631
737
843
949
1061
1167
1273
1379
1491
15111
16127
17163
18169
19183
20199
21223
22307
23313
24349
25361
26397
27433
28511
29523
30541
31613
32619
33709
34823
35907
361087
371123
381129
391147
401213
411279
421434

[1,3,7,13,19,31,37,43,49,61,67,73,79,91,111,127,
 163,169,183,199,223,307,313,349,361,397,433,511,
 523,541,613,619,709,823,907,1087,1123,1129,1147,
 1213,1279,1434]