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| n | a(n) |
|---|---|
| 1 | 1992760 |
| 2 | 635481090640800 |
| 3 | 338059904123009135280850 |
| 4 | 224061210725807969378046253140000 |
| 5 | 167919620604132417334149114648212316386760 |
[1992760,635481090640800,338059904123009135280850, 224061210725807969378046253140000, 167919620604132417334149114648212316386760] |