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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 6 |
| 3 | 1938 |
| 4 | 9502354 |
| 5 | 416022303027 |
| 6 | 154401817037192112 |
| 7 | 485400266057664024464791 |
[1,6,1938,9502354,416022303027,154401817037192112, 485400266057664024464791] |