n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 8 |
3 | 78 |
4 | 984 |
5 | 15480 |
6 | 292320 |
7 | 6441120 |
8 | 162207360 |
9 | 4595512320 |
10 | 144662112000 |
11 | 5009199148800 |
12 | 189221439052800 |
13 | 7743449813299200 |
14 | 341258374762905600 |
15 | 16113703632009984000 |
16 | 811588993992032256000 |
17 | 43431603596770701312000 |
[1,1,8,78,984,15480,292320,6441120,162207360, 4595512320,144662112000,5009199148800, 189221439052800,7743449813299200, 341258374762905600,16113703632009984000, 811588993992032256000,43431603596770701312000] |