n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | -12 |
5 | 60 |
6 | -210 |
7 | 1260 |
8 | -8400 |
9 | 54432 |
10 | -456360 |
11 | 4469520 |
12 | -45154296 |
13 | 493288224 |
14 | -5892938688 |
15 | 75085701600 |
16 | -1017515316480 |
17 | 14668694264704 |
18 | -223340767219392 |
19 | 3570533188036992 |
20 | -59698808359690112 |
21 | 1038791996385239040 |
[1,0,0,0,-12,60,-210,1260,-8400,54432,-456360, 4469520,-45154296,493288224,-5892938688, 75085701600,-1017515316480,14668694264704, -223340767219392,3570533188036992, -59698808359690112,1038791996385239040] |