n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 6 |
3 | 31 |
4 | 806 |
5 | 20306 |
6 | 2558556 |
7 | 320327931 |
8 | 200525284806 |
9 | 125368356709806 |
10 | 391901483074853556 |
11 | 1224770494838892134806 |
12 | 19138263752352528498478556 |
[1,1,6,31,806,20306,2558556,320327931, 200525284806,125368356709806,391901483074853556, 1224770494838892134806,19138263752352528498478556] |