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A037280 as a simple table

na(n)
11
21
33
41
55
623
77
83
93
1025
1111
121173
1313
1427
1535
1631
1717
182369
1919
2012255
2137
22211
2323
24586703
255
26213
2739
2812357
2929
3023561015
3131
321551
33311
34217
3557
36117345609
3737
38219
39313
406145255
4141
4223671421
4343
44120561
4535915
46223
4747
482933515203
497
50251025
51317

[1,1,3,1,5,23,7,3,3,25,11,1173,13,27,35,31,17,
 2369,19,12255,37,211,23,586703,5,213,39,12357,29,
 23561015,31,1551,311,217,57,117345609,37,219,313,
 6145255,41,23671421,43,120561,35915,223,47,
 2933515203,7,251025,317]