n | a(n) |
---|---|
1 | 0 |
2 | 4 |
3 | 384 |
4 | 82944 |
5 | 32768000 |
6 | 20736000000 |
7 | 19271206305792 |
8 | 24759631762948096 |
9 | 42071440246337175552 |
10 | 91403961001574400000000 |
11 | 247248735803801600000000000 |
12 | 815050629127324260701847945216 |
13 | 3217014140995401936351315753959424 |
[0,4,384,82944,32768000,20736000000, 19271206305792,24759631762948096, 42071440246337175552,91403961001574400000000, 247248735803801600000000000, 815050629127324260701847945216, 3217014140995401936351315753959424] |