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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 43 |
| 3 | 2215 |
| 4 | 204236 |
| 5 | 29238991 |
| 6 | 5968183657 |
| 7 | 1640535644378 |
| 8 | 582894501073075 |
| 9 | 259553822858233471 |
| 10 | 141383455055328055916 |
| 11 | 92397970113863259277807 |
| 12 | 71298681895041458302600993 |
| 13 | 64098926090734144410361983410 |
[2,43,2215,204236,29238991,5968183657, 1640535644378,582894501073075,259553822858233471, 141383455055328055916,92397970113863259277807, 71298681895041458302600993, 64098926090734144410361983410] |