n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -4 |
3 | 120 |
4 | -12096 |
5 | 3024000 |
6 | -1576143360 |
7 | 1525620096000 |
8 | -2522591034163200 |
9 | 6686974460694528000 |
10 | -27033456071346536448000 |
11 | 160078872315904478576640000 |
12 | -1342964491649083924630732800000 |
13 | 15522270327163593186886877184000000 |
[1,1,-4,120,-12096,3024000,-1576143360, 1525620096000,-2522591034163200, 6686974460694528000,-27033456071346536448000, 160078872315904478576640000, -1342964491649083924630732800000, 15522270327163593186886877184000000] |