n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 48 |
4 | 331776 |
5 | 79254226206720 |
6 | 471092427871945743012986880000 |
7 | 351177419973413722592573060611594181593855426560000000000 |
[1,1,2,48,331776,79254226206720, 471092427871945743012986880000, 35117741997341372259257306061159418159385542656000\ 0000000] |