n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -4 |
3 | 20 |
4 | -224 |
5 | 3392 |
6 | -67232 |
7 | 1629728 |
8 | -46799104 |
9 | 1552143104 |
10 | -58386807296 |
11 | 2455954797056 |
12 | -114222622662656 |
13 | 5819845970653184 |
14 | -322384671892123648 |
15 | 19290013218140254208 |
16 | -1239886482366130946048 |
17 | 85200320552417960394752 |
[1,1,-4,20,-224,3392,-67232,1629728,-46799104, 1552143104,-58386807296,2455954797056, -114222622662656,5819845970653184, -322384671892123648,19290013218140254208, -1239886482366130946048,85200320552417960394752] |