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| n | a(n) |
|---|---|
| 1 | 479001600 |
| 2 | 39916800 |
| 3 | 51090942171709440000 |
| 4 | 8841761993739701954543616000000 |
| 5 | 295232799039604140847618609643520000000 |
| 6 | 5502622159812088949850305428800254892961651752960000000000 |
| 7 | 371993326789901217467999448150835200000000 |
[479001600,39916800,51090942171709440000, 8841761993739701954543616000000, 295232799039604140847618609643520000000, 55026221598120889498503054288002548929616517529600\ 00000000, 371993326789901217467999448150835200000000] |