n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 20 |
3 | -280 |
4 | 18000 |
5 | -1277760 |
6 | 159922880 |
7 | -26119949440 |
8 | 5923118588160 |
9 | -1705199348152320 |
10 | 619341836139299840 |
11 | -274598298613483878400 |
12 | 146431095418622106193920 |
13 | -92305017354779154307399680 |
[1,0,20,-280,18000,-1277760,159922880, -26119949440,5923118588160,-1705199348152320, 619341836139299840,-274598298613483878400, 146431095418622106193920, -92305017354779154307399680] |