n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 96 |
3 | 18432 |
4 | 31850496 |
5 | 550376570880 |
6 | 114126085737676800 |
7 | 331312591939905257472000 |
8 | 14427205603578338379772723200000 |
9 | 10051861189298894268003697526046720000000 |
[1,4,96,18432,31850496,550376570880, 114126085737676800,331312591939905257472000, 14427205603578338379772723200000, 10051861189298894268003697526046720000000] |