n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 806400 |
3 | 29900785676206001356800000 |
4 | 1118776785681133797769642926006209350326602179759885516800000000000000 |
[1,2,806400,29900785676206001356800000, 11187767856811337977696429260062093503266021797598\ 85516800000000000000] |