n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | -12 |
5 | 60 |
6 | -210 |
7 | 1260 |
8 | -11088 |
9 | 78624 |
10 | -476520 |
11 | 4469520 |
12 | -59173752 |
13 | 609811488 |
14 | -4917756480 |
15 | 63884751840 |
16 | -1229990362368 |
17 | 16261478914944 |
18 | -136911418778304 |
19 | 2226347294914944 |
20 | -65132012907161472 |
[1,0,0,0,-12,60,-210,1260,-11088,78624,-476520, 4469520,-59173752,609811488,-4917756480, 63884751840,-1229990362368,16261478914944, -136911418778304,2226347294914944, -65132012907161472] |