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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 5 |
| 3 | 350 |
| 4 | 27048 |
| 5 | 3100695 |
| 6 | 592034865 |
| 7 | 197411860692 |
| 8 | 117689225496746 |
| 9 | 126916285441085904 |
| 10 | 249072860973467032724 |
[0,5,350,27048,3100695,592034865,197411860692, 117689225496746,126916285441085904, 249072860973467032724] |