n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 252 |
3 | 18480 |
4 | 1801800 |
5 | 209513304 |
6 | 27485041584 |
7 | 3937652896320 |
8 | 603400560305400 |
9 | 97512510301206000 |
10 | 16452310738019476320 |
11 | 2876570958459008603520 |
12 | 518262201015698050067520 |
13 | 95794174581229987212924000 |
14 | 18101994022606737439599480000 |
[1,6,252,18480,1801800,209513304,27485041584, 3937652896320,603400560305400,97512510301206000, 16452310738019476320,2876570958459008603520, 518262201015698050067520, 95794174581229987212924000, 18101994022606737439599480000] |