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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 7 |
| 4 | 49 |
| 5 | 2401 |
| 6 | 5764801 |
| 7 | 33232930569601 |
| 8 | 1104427674243920646305299201 |
| 9 | 1219760487635835700138573862562971820755615294131238401 |
[1,7,7,49,2401,5764801,33232930569601, 1104427674243920646305299201, 12197604876358357001385738625629718207556152941312\ 38401] |