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A373519 as a simple table

na(n)
01
11
21
31
41
531
6181
7631
81681
960481
10687961
114379761
1219982161
13802740511
1413848694861
15131732390791
16873339798241
1738385869907841
18894783905472241
1911506538747852641
20101612306808695521
214824806928717603871
22142148609212891008421

[1,1,1,1,1,31,181,631,1681,60481,687961,4379761,
 19982161,802740511,13848694861,131732390791,
 873339798241,38385869907841,894783905472241,
 11506538747852641,101612306808695521,
 4824806928717603871,142148609212891008421]