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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 6400 |
| 3 | 2518569 |
| 4 | 1026177156 |
| 5 | 420771471561 |
| 6 | 172850051090025 |
| 7 | 71030642332905025 |
[16,6400,2518569,1026177156,420771471561, 172850051090025,71030642332905025] |