n | a(n) |
---|---|
3 | 1 |
4 | -2040 |
5 | 4508570 |
6 | -9900819720 |
7 | 21752862899691 |
8 | -47790911017216080 |
9 | 104996653267533662740 |
10 | -230677643550873536294640 |
11 | 506798783502833908602716981 |
12 | -1113436927250681654567602842120 |
[1,-2040,4508570,-9900819720,21752862899691, -47790911017216080,104996653267533662740, -230677643550873536294640, 506798783502833908602716981, -1113436927250681654567602842120] |