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A196786 as a simple table

na(n)
11
21
31
41
51
61
71
83
93
101
111
127
1317
147
151
161
1717
1839
1939
2017
211
221
2341
24135
25145
26135
2741
281
291
3099
31427
32797
33797
34427
3599
361
371
38239
391351
403569
416137
423569
431351
44239
451
461
47577
484319
4917175
5040749
5140749
5217175
534319
54577
551
561
571393
5813715
5981389
60289761
61404589

[1,1,1,1,1,1,1,3,3,1,1,7,17,7,1,1,17,39,39,17,1,1,
 41,135,145,135,41,1,1,99,427,797,797,427,99,1,1,
 239,1351,3569,6137,3569,1351,239,1,1,577,4319,
 17175,40749,40749,17175,4319,577,1,1,1393,13715,
 81389,289761,404589]