n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 2 |
3 | -3 |
4 | 28 |
5 | -110 |
6 | 1058 |
7 | -6804 |
8 | 75024 |
9 | -664488 |
10 | 8456712 |
11 | -94737720 |
12 | 1378535112 |
13 | -18587872368 |
14 | 305610292752 |
15 | -4802794952760 |
16 | 88232994448128 |
17 | -1580181612876864 |
18 | 32119507894881216 |
19 | -644756418530970624 |
[1,0,2,-3,28,-110,1058,-6804,75024,-664488, 8456712,-94737720,1378535112,-18587872368, 305610292752,-4802794952760,88232994448128, -1580181612876864,32119507894881216, -644756418530970624] |