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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 13 |
| 3 | 2262 |
| 4 | 2497939 |
| 5 | 18325569581 |
| 6 | 997395684898288 |
| 7 | 423899279234753748599 |
[1,13,2262,2497939,18325569581,997395684898288, 423899279234753748599] |