n | a(n) |
---|---|
1 | 1 |
2 | -1 |
3 | -2 |
4 | 48 |
5 | 30240 |
6 | -1596672000 |
7 | -18172937502720000 |
8 | 122457316443772566896640000 |
9 | 1284319496829094129116119090331648000000 |
10 | -55603466527142141932748234118927499493985767915520000000 |
[1,-1,-2,48,30240,-1596672000,-18172937502720000, 122457316443772566896640000, 1284319496829094129116119090331648000000, -5560346652714214193274823411892749949398576791552\ 0000000] |