n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 12 |
3 | 180 |
4 | 7200 |
5 | 748800 |
6 | 204422400 |
7 | 145957593600 |
8 | 272940700032000 |
9 | 1336044726656640000 |
10 | 17122749216831498240000 |
11 | 574502481723130428948480000 |
12 | 50464872497041500009263431680000 |
13 | 11605406728144633757130311383449600000 |
[1,2,12,180,7200,748800,204422400,145957593600, 272940700032000,1336044726656640000, 17122749216831498240000, 574502481723130428948480000, 50464872497041500009263431680000, 11605406728144633757130311383449600000] |