n | a(n) |
---|---|
1 | 0 |
2 | 56 |
3 | 419250816 |
4 | 2294248126968596791296 |
5 | 71871209790288983974921874964480000000000 |
6 | 70222282105561329499166350697268240329817049897201827840000000000000 |
[0,56,419250816,2294248126968596791296, 71871209790288983974921874964480000000000, 70222282105561329499166350697268240329817049897201\ 827840000000000000] |