n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 2 |
6 | 6 |
7 | 48 |
8 | 2592 |
9 | 3421440 |
10 | 1952520007680 |
11 | 79423772100432548659200 |
12 | 2433694280407609647520301298079459442688000 |
13 | 1731103819002733625504286414686785477293241305893841298989509923950758461440000 |
[1,1,1,1,2,6,48,2592,3421440,1952520007680, 79423772100432548659200, 2433694280407609647520301298079459442688000, 17311038190027336255042864146867854772932413058938\ 41298989509923950758461440000] |