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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2929 |
| 3 | 9742277641 |
| 4 | 23341869101 |
| 5 | 15092205901438895 |
| 6 | 16311037042239935 |
[1,2929,9742277641,23341869101,15092205901438895, 16311037042239935] |