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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 3787 |
| 3 | 848549 |
| 4 | 1032827165 |
| 5 | 5870133564899 |
| 6 | 153501837729691233 |
| 7 | 17966786586499994357043 |
| 8 | 9464450815584141936194129755 |
| 9 | 22345321168723592516841966285661051 |
[81,3787,848549,1032827165,5870133564899, 153501837729691233,17966786586499994357043, 9464450815584141936194129755, 22345321168723592516841966285661051] |