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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 70 |
| 3 | 33261 |
| 4 | 56506806 |
| 5 | 250834987380 |
| 6 | 2414371474673571 |
| 7 | 44451152905883329021 |
[1,70,33261,56506806,250834987380, 2414371474673571,44451152905883329021] |