n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 2 |
3 | 12 |
4 | 216 |
5 | 5280 |
6 | 190800 |
7 | 9344160 |
8 | 598066560 |
9 | 48443028480 |
10 | 4844306476800 |
11 | 586161043776000 |
12 | 84407190782745600 |
13 | 14264815236056985600 |
14 | 2795903786354347468800 |
15 | 629078351928420506112000 |
16 | 161044058093696572354560000 |
17 | 46541732789077953723039744000 |
[1,0,2,12,216,5280,190800,9344160,598066560, 48443028480,4844306476800,586161043776000, 84407190782745600,14264815236056985600, 2795903786354347468800,629078351928420506112000, 161044058093696572354560000, 46541732789077953723039744000] |