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| n | a(n) |
|---|---|
| 1 | 48 |
| 2 | 544 |
| 3 | 7368 |
| 4 | 225112 |
| 5 | 14336176 |
| 6 | 1009920648 |
| 7 | 88480044480 |
| 8 | 8440605282944 |
| 9 | 821388596630712 |
[48,544,7368,225112,14336176,1009920648, 88480044480,8440605282944,821388596630712] |