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| n | a(n) |
|---|---|
| 1 | 18 |
| 2 | 14107 |
| 3 | 11648559 |
| 4 | 7375608084 |
| 5 | 3674187761233 |
| 6 | 1507315600099908 |
| 7 | 526500713340421071 |
| 8 | 160321266022658991751 |
| 9 | 43304255513243305231273 |
| 10 | 10515069913569825177115136 |
| 11 | 2319701107323309166913311672 |
[18,14107,11648559,7375608084,3674187761233, 1507315600099908,526500713340421071, 160321266022658991751,43304255513243305231273, 10515069913569825177115136, 2319701107323309166913311672] |