n | a(n) |
---|---|
1 | 1 |
2 | 18 |
3 | 486 |
4 | 17496 |
5 | 787320 |
6 | 42515280 |
7 | 2678462640 |
8 | 192849310080 |
9 | 15620794116480 |
10 | 1405871470483200 |
11 | 139181275577836800 |
12 | 15031577762406374400 |
13 | 1758694598201545804800 |
14 | 221595519373394771404800 |
15 | 29915395115408294139648000 |
16 | 4307816896618794356109312000 |
[1,18,486,17496,787320,42515280,2678462640, 192849310080,15620794116480,1405871470483200, 139181275577836800,15031577762406374400, 1758694598201545804800,221595519373394771404800, 29915395115408294139648000, 4307816896618794356109312000] |