n | a(n) |
---|---|
2 | 1 |
3 | 180 |
4 | 25200 |
5 | 4233600 |
6 | 898128000 |
7 | 239740300800 |
8 | 79332244992000 |
9 | 32011868528640000 |
10 | 15509750302126080000 |
11 | 8898339094906060800000 |
12 | 5971815866682429603840000 |
13 | 4637851802955964809216000000 |
[1,180,25200,4233600,898128000,239740300800, 79332244992000,32011868528640000, 15509750302126080000,8898339094906060800000, 5971815866682429603840000, 4637851802955964809216000000] |