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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 975 |
| 3 | 22393 |
| 4 | 1107653 |
| 5 | 95406881 |
| 6 | 18882502861 |
| 7 | 5930319470993 |
| 8 | 4826668916366649 |
| 9 | 5602584763152248073 |
| 10 | 19536887913580369729045 |
[81,975,22393,1107653,95406881,18882502861, 5930319470993,4826668916366649, 5602584763152248073,19536887913580369729045] |