n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | -1 |
3 | 5 |
4 | -24 |
5 | 166 |
6 | -1350 |
7 | 13082 |
8 | -145376 |
9 | 1827376 |
10 | -25592400 |
11 | 395118272 |
12 | -6664254432 |
13 | 121895495632 |
14 | -2402856317680 |
15 | 50776649007632 |
16 | -1144984530078720 |
17 | 27440409496420096 |
18 | -696465326225541888 |
[0,1,-1,5,-24,166,-1350,13082,-145376,1827376, -25592400,395118272,-6664254432,121895495632, -2402856317680,50776649007632,-1144984530078720, 27440409496420096,-696465326225541888] |