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] |