n | a(n) |
---|---|
1 | 2 |
2 | 5 |
3 | 26 |
4 | 850 |
5 | 943950 |
6 | 1318281510000 |
7 | 2755017380686402917800000 |
8 | 10751241448828145947377163154256928532205365443200 |
9 | 186653497320711305248493130820948403307540799528422902350199946673943964748877201760000000000000000 |
[2,5,26,850,943950,1318281510000, 2755017380686402917800000, 10751241448828145947377163154256928532205365443200\ , 18665349732071130524849313082094840330754079952842\ 2902350199946673943964748877201760000000000000000] |