n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 40 |
3 | -544 |
4 | -14240 |
5 | 240512 |
6 | 7905536 |
7 | -144081920 |
8 | -5248825856 |
9 | 99459618816 |
10 | 3842132979712 |
11 | -74547398033408 |
12 | -2991092285194240 |
13 | 58965437254402048 |
14 | 2429529032173420544 |
15 | -48445417122664284160 |
16 | -2035619492638819483648 |
17 | 40941665274780773253120 |
[1,4,40,-544,-14240,240512,7905536,-144081920, -5248825856,99459618816,3842132979712, -74547398033408,-2991092285194240, 58965437254402048,2429529032173420544, -48445417122664284160,-2035619492638819483648, 40941665274780773253120] |