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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 41 |
| 3 | 1176 |
| 4 | 20191 |
| 5 | 447668 |
| 6 | 9855864 |
| 7 | 216042764 |
| 8 | 4683808777 |
| 9 | 102440829474 |
| 10 | 2232503865348 |
| 11 | 48692888533485 |
| 12 | 1062046643313404 |
| 13 | 23164137991212547 |
| 14 | 505192448140138820 |
| 15 | 11018595483560578437 |
| 16 | 240317309840328016805 |
[1,41,1176,20191,447668,9855864,216042764, 4683808777,102440829474,2232503865348, 48692888533485,1062046643313404,23164137991212547, 505192448140138820,11018595483560578437, 240317309840328016805] |