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A318003 as a simple table

na(n)
11
22
313
4140
52041
638222
7874693
823644280
9737301361
1026053773242
111028890245373
1244906842244420
132146597351615081
14111529829156824262
156258181131400784053
16377167403797348584560
1724298520283720455935201
181666382133585488471159282
19121205126078549481910218733
209319638200814732292237048700

[1,2,13,140,2041,38222,874693,23644280,737301361,
 26053773242,1028890245373,44906842244420,
 2146597351615081,111529829156824262,
 6258181131400784053,377167403797348584560,
 24298520283720455935201,1666382133585488471159282,
 121205126078549481910218733,
 9319638200814732292237048700]