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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 37 |
| 3 | 397 |
| 4 | 389 |
| 5 | 11617 |
| 6 | 11597 |
| 7 | 11593 |
| 8 | 2048509 |
| 9 | 2772409 |
| 10 | 5193997 |
| 11 | 33933701 |
| 12 | 125624813 |
| 13 | 125624809 |
| 14 | 432787781 |
| 15 | 432787777 |
| 16 | 4762221193 |
| 17 | 4762221181 |
| 18 | 182839149373 |
| 19 | 547414016069 |
| 20 | 551900822513 |
[2,37,397,389,11617,11597,11593,2048509,2772409, 5193997,33933701,125624813,125624809,432787781, 432787777,4762221193,4762221181,182839149373, 547414016069,551900822513] |