n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 3 |
4 | 24 |
5 | 1680 |
6 | 5317635 |
7 | 66314914699608 |
8 | 8947678119828215014722891024 |
9 | 178098260698995011212395018312912894502905113202338936835 |
[0,0,3,24,1680,5317635,66314914699608, 8947678119828215014722891024, 17809826069899501121239501831291289450290511320233\ 8936835] |