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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 11 |
| 3 | 73 |
| 4 | 45143873 |
| 5 | 1043046721 |
| 6 | 1182114430632237601 |
| 7 | 49814113380273715457 |
[3,11,73,45143873,1043046721,1182114430632237601, 49814113380273715457] |