n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 6 |
5 | 48 |
6 | 2592 |
7 | 6842880 |
8 | 46842743439360 |
9 | 2194242933464976548324966400 |
10 | 4814702051061088283920560140388303599459408453566464000 |
11 | 23181355840491850372772514246989811472332466216882815765831029699284672633019505150499832539732598430105600000 |
[0,1,1,2,6,48,2592,6842880,46842743439360, 2194242933464976548324966400, 48147020510610882839205601403883035994594084535664\ 64000, 23181355840491850372772514246989811472332466216882\ 81576583102969928467263301950515049983253973259843\ 0105600000] |