n | a(n) |
---|---|
1 | 2 |
2 | 12 |
3 | 1649253940128607650037732224082865475000 |
4 | 720 |
5 | 2032221170141662500000 |
6 | 7372155480163603867228249918067794802791875000000 |
[2,12,1649253940128607650037732224082865475000, 720,2032221170141662500000, 7372155480163603867228249918067794802791875000000] |