n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 56 |
3 | 864 |
4 | 16896 |
5 | 399360 |
6 | 11059200 |
7 | 350945280 |
8 | 12551454720 |
9 | 499415777280 |
10 | 21879167385600 |
11 | 1046394961920000 |
12 | 54245114825932800 |
13 | 3029690116944691200 |
14 | 181363518724689100800 |
15 | 11583863454028529664000 |
16 | 786298610212845649920000 |
17 | 56523637237014847291392000 |
[1,5,56,864,16896,399360,11059200,350945280, 12551454720,499415777280,21879167385600, 1046394961920000,54245114825932800, 3029690116944691200,181363518724689100800, 11583863454028529664000,786298610212845649920000, 56523637237014847291392000] |