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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 9 |
| 2 | 81 |
| 3 | 8505 |
| 4 | 229635 |
| 5 | 413343 |
| 6 | 531972441 |
| 7 | 227988189 |
| 8 | 3419822835 |
| 9 | 29824274944035 |
| 10 | 375785864294841 |
| 11 | 307461161695779 |
| 12 | 1116569481947829 |
| 13 | 660923243352964935 |
| 14 | 849758455739526345 |
| 15 | 6875395665388507657395 |
[1,9,81,8505,229635,413343,531972441,227988189, 3419822835,29824274944035,375785864294841, 307461161695779,1116569481947829, 660923243352964935,849758455739526345, 6875395665388507657395] |