n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 12 |
4 | 72 |
5 | 1080 |
6 | 129600 |
7 | 54432000 |
8 | 22861440000 |
9 | 9601804800000 |
10 | 4032758016000000 |
11 | 18631342033920000000 |
12 | 86076800196710400000000 |
13 | 5169772619814426624000000000 |
14 | 310496543546054463037440000000000 |
[1,2,12,72,1080,129600,54432000,22861440000, 9601804800000,4032758016000000, 18631342033920000000,86076800196710400000000, 5169772619814426624000000000, 310496543546054463037440000000000] |