n | a(n) |
---|---|
0 | 2 |
1 | 1 |
2 | 2 |
3 | 2 |
4 | 8 |
5 | 12 |
6 | 72 |
7 | 144 |
8 | 1152 |
9 | 2880 |
10 | 28800 |
11 | 86400 |
12 | 1036800 |
13 | 3628800 |
14 | 50803200 |
15 | 203212800 |
16 | 3251404800 |
17 | 14631321600 |
18 | 263363788800 |
19 | 1316818944000 |
20 | 26336378880000 |
21 | 144850083840000 |
22 | 3186701844480000 |
23 | 19120211066880000 |
24 | 458885065605120000 |
25 | 2982752926433280000 |
[2,1,2,2,8,12,72,144,1152,2880,28800,86400, 1036800,3628800,50803200,203212800,3251404800, 14631321600,263363788800,1316818944000, 26336378880000,144850083840000,3186701844480000, 19120211066880000,458885065605120000, 2982752926433280000] |