n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 480 |
3 | 1488000 |
4 | 116064000000 |
5 | 226614960000000000 |
6 | 11064475422000000000000000 |
7 | 13506266841692625000000000000000000 |
8 | 412177498341354683437500000000000000000000000 |
[1,4,480,1488000,116064000000,226614960000000000, 11064475422000000000000000, 13506266841692625000000000000000000, 412177498341354683437500000000000000000000000] |