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| n | a(n) |
|---|---|
| 1 | 141647296 |
| 2 | 56368726448 |
| 3 | 30836924266632 |
| 4 | 16680713033508736 |
| 5 | 9906634826573197984 |
[141647296,56368726448,30836924266632, 16680713033508736,9906634826573197984] |