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A249909 as a simple table

na(n)
01
11
21
31
41
51
61
761
81
9277
101
1119
12691
1343
141
1547
163617
17228135437
1843867
1979
20283
2141737
22131
2331
24103
252137
26657931
2767
289349
2971
301721
3115669721
3237
33930157
34151628697551
354153
3626315271553053477373
379257
38154210205991661
3923489580527043108252017828576198947741
40137616929
41763601

[1,1,1,1,1,1,1,61,1,277,1,19,691,43,1,47,3617,
 228135437,43867,79,283,41737,131,31,103,2137,
 657931,67,9349,71,1721,15669721,37,930157,
 151628697551,4153,26315271553053477373,9257,
 154210205991661,
 23489580527043108252017828576198947741,137616929,
 763601]