n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 2 |
3 | -21 |
4 | 220 |
5 | -2705 |
6 | 40926 |
7 | -733537 |
8 | 15124216 |
9 | -352606050 |
10 | 9174382490 |
11 | -263533561852 |
12 | 8283376452948 |
13 | -282795708021411 |
14 | 10420847619031710 |
15 | -412243715452039440 |
16 | 17425722339237083120 |
17 | -783844576340696848341 |
18 | 37384875796116662077194 |
[1,-1,2,-21,220,-2705,40926,-733537,15124216, -352606050,9174382490,-263533561852,8283376452948, -282795708021411,10420847619031710, -412243715452039440,17425722339237083120, -783844576340696848341,37384875796116662077194] |