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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 90 |
| 4 | 34105 |
| 5 | 210766920 |
| 6 | 26585679462804 |
| 7 | 82892803728383735268 |
| 8 | 7529580759157036060608585183 |
| 9 | 22982258052528294182955639980819773510 |
| 10 | 2672446997421818663856559987803834697952486978300 |
| 11 | 13239043631590111512460321918828937597837325561187113535696980 |
[1,1,3,90,34105,210766920,26585679462804, 82892803728383735268,7529580759157036060608585183, 22982258052528294182955639980819773510, 2672446997421818663856559987803834697952486978300, 13239043631590111512460321918828937597837325561187\ 113535696980] |