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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 2793 |
| 4 | 173302857 |
| 5 | 3257420083394841 |
| 6 | 30572436265385693946286383 |
| 7 | 213701173947351299768327343802342830897 |
| 8 | 1552400172652063971265258662606880393824188151866063025 |
[1,7,2793,173302857,3257420083394841, 30572436265385693946286383, 213701173947351299768327343802342830897, 15524001726520639712652586626068803938241881518660\ 63025] |