n | a(n) |
---|---|
0 | 1 |
1 | -4 |
2 | 72 |
3 | -2400 |
4 | 117600 |
5 | -7620480 |
6 | 614718720 |
7 | -59364264960 |
8 | 6678479808000 |
9 | -857813628672000 |
10 | 123868287980236800 |
11 | -19863969090648883200 |
12 | 3502679882984419737600 |
13 | -673592285189311488000000 |
14 | 140299650258002307072000000 |
15 | -31464534897861317399347200000 |
[1,-4,72,-2400,117600,-7620480,614718720, -59364264960,6678479808000,-857813628672000, 123868287980236800,-19863969090648883200, 3502679882984419737600,-673592285189311488000000, 140299650258002307072000000, -31464534897861317399347200000] |