n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 2073600 |
3 | 25177856146146034974720000000 |
4 | 14100949826093501607549529280892932893801777581548587107609477120000000000000000 |
[1,2,2073600,25177856146146034974720000000, 14100949826093501607549529280892932893801777581548\ 587107609477120000000000000000] |