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| n | a(n) |
|---|---|
| 3 | 158 |
| 4 | 383952 |
| 5 | 4441024084 |
| 6 | 48355849295584 |
| 7 | 488843985379403504 |
| 8 | 3886322767215219785816 |
| 9 | 21984915490485627511724004 |
| 10 | 81833956284258298963463536512 |
[158,383952,4441024084,48355849295584, 488843985379403504,3886322767215219785816, 21984915490485627511724004, 81833956284258298963463536512] |