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| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 61 |
| 3 | 3841 |
| 4 | 14760961 |
| 5 | 217885999165441 |
| 6 | 47474308632322991920487055361 |
| 7 | 2253809980117057347661794063813616885861274573005652951041 |
[7,61,3841,14760961,217885999165441, 47474308632322991920487055361, 22538099801170573476617940638136168858612745730056\ 52951041] |