n | a(n) |
---|---|
0 | 1 |
1 | 720 |
2 | 7257600 |
3 | 15676416000 |
4 | 3476402012160000 |
5 | 162695614169088000000 |
6 | 4919915372473221120000000 |
7 | 60219764159072226508800000000 |
8 | 507464726196802564122476544000000000 |
9 | 3288371425755280615513648005120000000000 |
[1,720,7257600,15676416000,3476402012160000, 162695614169088000000,4919915372473221120000000, 60219764159072226508800000000, 507464726196802564122476544000000000, 3288371425755280615513648005120000000000] |