n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 36 |
4 | 270 |
5 | 4320 |
6 | 17010 |
7 | 5443200 |
8 | 204120 |
9 | 2351462400 |
10 | 1515591000 |
11 | 2172751257600 |
12 | 354648294000 |
13 | 10168475885568000 |
14 | 7447614174000 |
15 | 1830325659402240000 |
16 | 1595278956070800000 |
17 | 2987091476144455680000 |
[1,1,3,36,270,4320,17010,5443200,204120, 2351462400,1515591000,2172751257600,354648294000, 10168475885568000,7447614174000, 1830325659402240000,1595278956070800000, 2987091476144455680000] |