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A090940 as a simple table

na(n)
13
27
35
413
537
673
723
871
929
10109
11103
1219
1341
14293
1559
16251
17683
18107
1931
20223
2167
22151
23523
24127
25227
26131
27347
2883
29137
30197
31139
32907
33163
34503
35173
36389
37179
38863
39743
40211
412671
42271
43701
44281
45101
46277
474507
48367
49661
50373
51883
52383
532927
54431
55541
56433

[3,7,5,13,37,73,23,71,29,109,103,19,41,293,59,251,
 683,107,31,223,67,151,523,127,227,131,347,83,137,
 197,139,907,163,503,173,389,179,863,743,211,2671,
 271,701,281,101,277,4507,367,661,373,883,383,2927,
 431,541,433]