n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 1 |
6 | 240 |
7 | 62720 |
8 | 23224320 |
9 | 13440516096 |
10 | 12754259804160 |
11 | 20377681883299840 |
12 | 55671587500342640640 |
13 | 262483693581093123915776 |
14 | 2147534811240814766425374720 |
15 | 30585643102219392981931508367360 |
[0,0,0,0,1,240,62720,23224320,13440516096, 12754259804160,20377681883299840, 55671587500342640640,262483693581093123915776, 2147534811240814766425374720, 30585643102219392981931508367360] |