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A242193 as a simple table

na(n)
11
21
31
41
55
6691
77
83617
943867
10283
1111
12103
1313
149349
151721
1637
1717
1826315271553053477373
1919
20137616929
211520097643918070802691
2259
2323
24653
25417202699
26577
2739409
28113161
2929
302003
3131
321226592271
33839
34101
35688531

[1,1,1,1,5,691,7,3617,43867,283,11,103,13,9349,
 1721,37,17,26315271553053477373,19,137616929,
 1520097643918070802691,59,23,653,417202699,577,
 39409,113161,29,2003,31,1226592271,839,101,688531]