n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 8 |
3 | 132 |
4 | 3360 |
5 | 116280 |
6 | 5100480 |
7 | 271252800 |
8 | 16963914240 |
9 | 1220096908800 |
10 | 99225500774400 |
11 | 9003984596006400 |
12 | 901928094049382400 |
13 | 98856066097780992000 |
14 | 11768525894839633920000 |
15 | 1512185803617951221760000 |
16 | 208598907329474462760960000 |
[1,1,8,132,3360,116280,5100480,271252800, 16963914240,1220096908800,99225500774400, 9003984596006400,901928094049382400, 98856066097780992000,11768525894839633920000, 1512185803617951221760000, 208598907329474462760960000] |