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A318003 as a simple table

n a(n)
1 1
2 2
3 13
4 140
5 2041
6 38222
7 874693
8 23644280
9 737301361
10 26053773242
11 1028890245373
12 44906842244420
13 2146597351615081
14 111529829156824262
15 6258181131400784053
16 377167403797348584560
17 24298520283720455935201
18 1666382133585488471159282
19 121205126078549481910218733
20 9319638200814732292237048700

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

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Last modified August 7 23:16 EDT 2022. Contains 355995 sequences. (Running on oeis4.)