n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 16 |
3 | 2160 |
4 | 4644864 |
5 | 220962816000 |
6 | 126311423016960000 |
7 | 97655159393202733056000000 |
8 | 2873961139404949958783139840000000000 |
9 | 5118723340142578530942677236206891171840000000000 |
[0,1,16,2160,4644864,220962816000, 126311423016960000,97655159393202733056000000, 2873961139404949958783139840000000000, 5118723340142578530942677236206891171840000000000] |