n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 18 |
4 | 386 |
5 | 12200 |
6 | 608993 |
7 | 49489706 |
8 | 6648891794 |
9 | 1489334202216 |
10 | 558938851118771 |
11 | 352470525557050186 |
12 | 374131713336300308700 |
13 | 669158287926101914730400 |
14 | 2017974751792892883550074600 |
[0,1,18,386,12200,608993,49489706,6648891794, 1489334202216,558938851118771,352470525557050186, 374131713336300308700,669158287926101914730400, 2017974751792892883550074600] |