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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 131 |
| 2 | 8161 |
| 3 | 386093 |
| 4 | 16290047 |
| 5 | 645155197 |
| 6 | 24563311309 |
| 7 | 910399916939 |
| 8 | 33089240375501 |
| 9 | 1184895616861903 |
| 10 | 41935796950796653 |
| 11 | 1470194760556507397 |
[2,131,8161,386093,16290047,645155197,24563311309, 910399916939,33089240375501,1184895616861903, 41935796950796653,1470194760556507397] |