n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 0 |
3 | -4 |
4 | 14 |
5 | -18 |
6 | -168 |
7 | 1920 |
8 | -11898 |
9 | 27398 |
10 | 582896 |
11 | -13028904 |
12 | 183020620 |
13 | -2061910004 |
14 | 17930433744 |
15 | -65293856160 |
16 | -1965585556410 |
17 | 69343044999750 |
18 | -1519055329884960 |
19 | 26755366818127560 |
20 | -374375460816570780 |
21 | 2924763867241325220 |
[1,1,0,-4,14,-18,-168,1920,-11898,27398,582896, -13028904,183020620,-2061910004,17930433744, -65293856160,-1965585556410,69343044999750, -1519055329884960,26755366818127560, -374375460816570780,2924763867241325220] |