n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | -4 |
3 | -21 |
4 | -160 |
5 | -1505 |
6 | -17136 |
7 | -226093 |
8 | -3334528 |
9 | -53031105 |
10 | -864640000 |
11 | -12957006821 |
12 | -107329453056 |
13 | 4548002439071 |
14 | 409321789829120 |
15 | 23780752998703875 |
16 | 1257249577352658944 |
17 | 65336038911885770623 |
[1,-1,-4,-21,-160,-1505,-17136,-226093,-3334528, -53031105,-864640000,-12957006821,-107329453056, 4548002439071,409321789829120,23780752998703875, 1257249577352658944,65336038911885770623] |