n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 3 |
4 | 12 |
5 | 120 |
6 | 2160 |
7 | 45360 |
8 | 2903040 |
9 | 235146240 |
10 | 47029248000 |
11 | 2586608640000 |
12 | 4469659729920000 |
13 | 348633458933760000 |
14 | 307494710779576320000 |
15 | 553490479403237376000000 |
16 | 2267097003635660292096000000 |
17 | 308325192494449799725056000000 |
[1,1,3,12,120,2160,45360,2903040,235146240, 47029248000,2586608640000,4469659729920000, 348633458933760000,307494710779576320000, 553490479403237376000000, 2267097003635660292096000000, 308325192494449799725056000000] |