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A033890 as a simple table

na(n)
01
18
255
3377
42584
517711
6121393
7832040
85702887
939088169
10267914296
111836311903
1212586269025
1386267571272
14591286729879
154052739537881
1627777890035288
17190392490709135
181304969544928657
198944394323791464
2061305790721611591
21420196140727489673

[1,8,55,377,2584,17711,121393,832040,5702887,
 39088169,267914296,1836311903,12586269025,
 86267571272,591286729879,4052739537881,
 27777890035288,190392490709135,1304969544928657,
 8944394323791464,61305790721611591,
 420196140727489673]