n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 2 |
3 | 30 |
4 | 552 |
5 | 14280 |
6 | 517680 |
7 | 25396560 |
8 | 1625662080 |
9 | 131681531520 |
10 | 13168185811200 |
11 | 1593350882323200 |
12 | 229442532323558400 |
13 | 38775788037405619200 |
14 | 7600054456464819148800 |
15 | 1710012252722891749632000 |
16 | 437763136697374129754112000 |
[0,0,2,30,552,14280,517680,25396560,1625662080, 131681531520,13168185811200,1593350882323200, 229442532323558400,38775788037405619200, 7600054456464819148800,1710012252722891749632000, 437763136697374129754112000] |