n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 4 |
3 | -6 |
4 | 51 |
5 | -180 |
6 | 1614 |
7 | -9282 |
8 | 92981 |
9 | -747432 |
10 | 8490344 |
11 | -87525790 |
12 | 1128907527 |
13 | -14143194780 |
14 | 206202445778 |
15 | -3029299520730 |
16 | 49575702703017 |
17 | -833078428220240 |
18 | 15183028632600076 |
19 | -286645711942606518 |
[1,0,4,-6,51,-180,1614,-9282,92981,-747432, 8490344,-87525790,1128907527,-14143194780, 206202445778,-3029299520730,49575702703017, -833078428220240,15183028632600076, -286645711942606518] |