n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 80 |
3 | 3928 |
4 | 359040 |
5 | 52717856 |
6 | 11352019840 |
7 | 3370401007488 |
8 | 1319560185804800 |
9 | 658698869874201088 |
10 | 408325769541831280640 |
11 | 307740770628961995577344 |
12 | 277115224743231975378370560 |
[1,4,80,3928,359040,52717856,11352019840, 3370401007488,1319560185804800,658698869874201088, 408325769541831280640,307740770628961995577344, 277115224743231975378370560] |