n | a(n) |
---|---|
2 | 2 |
3 | 4 |
4 | 32 |
5 | 180 |
6 | 1152 |
7 | 6636 |
8 | 40384 |
9 | 266964 |
10 | 1800360 |
11 | 12127016 |
12 | 82960512 |
13 | 576835428 |
14 | 4054304072 |
15 | 28728093520 |
16 | 205123982848 |
[2,4,32,180,1152,6636,40384,266964,1800360, 12127016,82960512,576835428,4054304072, 28728093520,205123982848] |