n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 45 |
3 | 630 |
4 | 12600 |
5 | 340200 |
6 | 11907000 |
7 | 523908000 |
8 | 28291032000 |
9 | 1838917080000 |
10 | 141596615160000 |
11 | 12743695364400000 |
12 | 1325344317897600000 |
13 | 157715973829814400000 |
14 | 21291656467024944000000 |
[1,5,45,630,12600,340200,11907000,523908000, 28291032000,1838917080000,141596615160000, 12743695364400000,1325344317897600000, 157715973829814400000,21291656467024944000000] |