n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 0 |
4 | 12 |
5 | 140 |
6 | 2910 |
7 | 83202 |
8 | 3170216 |
9 | 154933704 |
10 | 9441522810 |
11 | 701275774430 |
12 | 62304994315212 |
13 | 6517432341289740 |
14 | 791949368757587222 |
15 | 110496962589020946330 |
16 | 17525486812000086847440 |
[1,1,2,0,12,140,2910,83202,3170216,154933704, 9441522810,701275774430,62304994315212, 6517432341289740,791949368757587222, 110496962589020946330,17525486812000086847440] |