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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 34 |
| 3 | 5032 |
| 4 | 5184780 |
| 5 | 41434710920 |
| 6 | 2476133354164264 |
| 7 | 1112998745351676081292 |
[3,34,5032,5184780,41434710920,2476133354164264, 1112998745351676081292] |