n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 20 |
3 | 1680 |
4 | 347279 |
5 | 145417911 |
6 | 108103451700 |
7 | 130235191847880 |
8 | 237916352264650149 |
9 | 626620767478218488341 |
10 | 2286998940761680215812180 |
11 | 11203494211631147331264432480 |
12 | 71758642346800717617629677669619 |
13 | 587889139521679290927189491977855371 |
[1,1,20,1680,347279,145417911,108103451700, 130235191847880,237916352264650149, 626620767478218488341,2286998940761680215812180, 11203494211631147331264432480, 71758642346800717617629677669619, 587889139521679290927189491977855371] |