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A238838 as a simple table
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 48 |
| 3 | 5760 |
| 4 | 5806080 |
| 5 | 75246796800 |
| 6 | 1780537083494400 |
| 7 | 115939740156316876800 |
| 8 | 19864514173849162481664000 |
[2,48,5760,5806080,75246796800,1780537083494400, 115939740156316876800,19864514173849162481664000] |