n | a(n) |
---|---|
1 | 1 |
2 | 120 |
3 | 1008 |
4 | 28800 |
5 | 49896 |
6 | 101088000 |
7 | 5702400 |
8 | 12350257920000 |
9 | 43480172736000 |
10 | 7075668600000 |
11 | 206069667148800 |
12 | 5919216795588096000 |
13 | 581222138112000 |
14 | 8460252005694128640000 |
15 | 18991807088644406016000 |
16 | 1150594272774401495040000 |
17 | 33940540399314092544000 |
18 | 9737059611553100811150566400000 |
19 | 1290633707289706940160000 |
20 | 1263402804161736165764268432000000 |
[1,120,1008,28800,49896,101088000,5702400, 12350257920000,43480172736000,7075668600000, 206069667148800,5919216795588096000, 581222138112000,8460252005694128640000, 18991807088644406016000,1150594272774401495040000, 33940540399314092544000, 9737059611553100811150566400000, 1290633707289706940160000, 1263402804161736165764268432000000] |