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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 9 |
| 3 | 82 |
| 4 | 207 |
| 5 | 70021 |
| 6 | 11937681 |
| 7 | 1867379174326 |
| 8 | 623471971900739499585 |
| 9 | 5859949370091168271294333980238096 |
| 10 | 6908320893334921728606040790129494417723642675198936230 |
[0,1,9,82,207,70021,11937681,1867379174326, 623471971900739499585, 5859949370091168271294333980238096, 69083208933349217286060407901294944177236426751989\ 36230] |