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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 54 |
| 3 | 7722 |
| 4 | 9318805 |
| 5 | 98721672541 |
| 6 | 9463992096711104 |
| 7 | 8396505064286814402888 |
[3,54,7722,9318805,98721672541,9463992096711104, 8396505064286814402888] |