n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | 2 |
5 | 6 |
6 | 156 |
7 | 7013320 |
8 | 29281354514767168 |
9 | 234431745534048922731115555415680 |
10 | 453456943706240925312368435237969462391555337386758635520 |
[1,1,1,1,2,6,156,7013320,29281354514767168, 234431745534048922731115555415680, 45345694370624092531236843523796946239155533738675\ 8635520] |