n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 240 |
3 | 1512000 |
4 | 1536288768000 |
5 | 429266120461516800000 |
6 | 50406068004584362019389440000000 |
7 | 3534677027377560888380072035048488960000000000 |
8 | 199761495428405897006583857561824669625759249203200000000000000 |
[1,3,240,1512000,1536288768000, 429266120461516800000, 50406068004584362019389440000000, 3534677027377560888380072035048488960000000000, 19976149542840589700658385756182466962575924920320\ 0000000000000] |