n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | -2 |
3 | -8 |
4 | -34 |
5 | -152 |
6 | -714 |
7 | -3472 |
8 | -17318 |
9 | -88048 |
10 | -454378 |
11 | -2373048 |
12 | -12515634 |
13 | -66551016 |
14 | -356345666 |
15 | -1919453984 |
16 | -10392792766 |
17 | -56527200992 |
18 | -308691183938 |
19 | -1691769619240 |
20 | -9301374102034 |
[1,0,-2,-8,-34,-152,-714,-3472,-17318,-88048, -454378,-2373048,-12515634,-66551016,-356345666, -1919453984,-10392792766,-56527200992, -308691183938,-1691769619240,-9301374102034] |