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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 8 |
| 3 | 784 |
| 4 | 913952 |
| 5 | 12119367744 |
| 6 | 1773206059548800 |
| 7 | 2808001509386950713600 |
| 8 | 47534638766423741578738188800 |
| 9 | 8530835766072904609739799813424153600 |
| 10 | 16137081911409285302469685272022812457875802112 |
| 11 | 320397648203287990193211938297925486964232264783587250176 |
[1,8,784,913952,12119367744,1773206059548800, 2808001509386950713600, 47534638766423741578738188800, 8530835766072904609739799813424153600, 16137081911409285302469685272022812457875802112, 32039764820328799019321193829792548696423226478358\ 7250176] |