n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 2 |
3 | -3 |
4 | 12 |
5 | -40 |
6 | 478 |
7 | -3759 |
8 | 40152 |
9 | -387864 |
10 | 4962042 |
11 | -64308915 |
12 | 983170980 |
13 | -15335058960 |
14 | 267831905430 |
15 | -4873619226735 |
16 | 96888423426480 |
17 | -2014804884605520 |
18 | 44917521867736050 |
19 | -1047513682848869955 |
[0,0,2,-3,12,-40,478,-3759,40152,-387864,4962042, -64308915,983170980,-15335058960,267831905430, -4873619226735,96888423426480,-2014804884605520, 44917521867736050,-1047513682848869955] |