n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 67584 |
3 | 7924375800 |
4 | 2876035930521600 |
5 | 2693451205324687500000 |
6 | 5648896640332217707816550400 |
7 | 23819277009290664033936067933468800 |
8 | 185754160490281505676324140907107450880000 |
9 | 2507604631016507710974687639612411760216253760000 |
[0,2,67584,7924375800,2876035930521600, 2693451205324687500000, 5648896640332217707816550400, 23819277009290664033936067933468800, 185754160490281505676324140907107450880000, 2507604631016507710974687639612411760216253760000] |