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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 37 |
| 3 | 149 |
| 4 | 599 |
| 5 | 153437 |
| 6 | 39279991 |
| 7 | 628479869 |
| 8 | 11056334789265976156021 |
| 9 | 3263254052013454238294691704608897001027543 |
| 10 | 7524551543123483484068003542235060639999919940760883731360687 |
[2,37,149,599,153437,39279991,628479869, 11056334789265976156021, 3263254052013454238294691704608897001027543, 75245515431234834840680035422350606399999199407608\ 83731360687] |