n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 10 |
3 | 270 |
4 | 14040 |
5 | 1193400 |
6 | 150368400 |
7 | 26314470000 |
8 | 6104957040000 |
9 | 1813172240880000 |
10 | 670873729125600000 |
11 | 302564051835645600000 |
12 | 163384587991248624000000 |
13 | 104075982550425373488000000 |
[1,1,10,270,14040,1193400,150368400,26314470000, 6104957040000,1813172240880000,670873729125600000, 302564051835645600000,163384587991248624000000, 104075982550425373488000000] |