n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 0 |
3 | -2 |
4 | 8 |
5 | -24 |
6 | 64 |
7 | -160 |
8 | 8448 |
9 | -86912 |
10 | 509696 |
11 | -1449216 |
12 | 44615680 |
13 | -366395392 |
14 | 3315376128 |
15 | -190488356864 |
16 | 4591008579584 |
17 | -33244620718080 |
18 | 86342088982528 |
19 | -2543409132470272 |
20 | 136456182420996096 |
21 | -5644134983026343936 |
22 | 103753337226615848960 |
[1,-1,0,-2,8,-24,64,-160,8448,-86912,509696, -1449216,44615680,-366395392,3315376128, -190488356864,4591008579584,-33244620718080, 86342088982528,-2543409132470272, 136456182420996096,-5644134983026343936, 103753337226615848960] |