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| n | a(n) |
|---|---|
| 1 | 255360 |
| 2 | 17205180696931968 |
| 3 | 1951532915603927040 |
| 4 | 12430490030984319840000 |
| 5 | 9956179688423375044684800000 |
| 6 | 6080633705911286890368486450696472902951229440 |
| 7 | 4809378729404888733987843426081300724182624228548100710400 |
[255360,17205180696931968,1951532915603927040, 12430490030984319840000, 9956179688423375044684800000, 6080633705911286890368486450696472902951229440, 48093787294048887339878434260813007241826242285481\ 00710400] |