n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | -1 |
3 | 3 |
4 | -6 |
5 | 23 |
6 | -135 |
7 | 1036 |
8 | -8820 |
9 | 79253 |
10 | -783405 |
11 | 8594146 |
12 | -103172454 |
13 | 1341998591 |
14 | -18791767995 |
15 | 281865510928 |
16 | -4509653027880 |
17 | 76663767284201 |
18 | -1379952916274457 |
19 | 26219142105604030 |
20 | -524382882377053690 |
[0,0,-1,3,-6,23,-135,1036,-8820,79253,-783405, 8594146,-103172454,1341998591,-18791767995, 281865510928,-4509653027880,76663767284201, -1379952916274457,26219142105604030, -524382882377053690] |