n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 12 |
4 | 24 |
5 | 720 |
6 | 720 |
7 | 151200 |
8 | 302400 |
9 | 1814400 |
10 | 1814400 |
11 | 4191264000 |
12 | 4191264000 |
13 | 125863657920000 |
14 | 125863657920000 |
15 | 125863657920000 |
16 | 251727315840000 |
17 | 128509312009478400000 |
18 | 128509312009478400000 |
19 | 1246500488605217541696000000 |
[1,2,12,24,720,720,151200,302400,1814400,1814400, 4191264000,4191264000,125863657920000, 125863657920000,125863657920000,251727315840000, 128509312009478400000,128509312009478400000, 1246500488605217541696000000] |