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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 90 |
| 3 | 882 |
| 4 | 8474 |
| 5 | 82650 |
| 6 | 803894 |
| 7 | 7858034 |
| 8 | 76833498 |
| 9 | 752970088 |
| 10 | 7385132830 |
| 11 | 72529933448 |
| 12 | 712899726610 |
| 13 | 7013548687126 |
| 14 | 69048242750358 |
| 15 | 680252491600274 |
| 16 | 6705715693296522 |
| 17 | 66139925760268608 |
| 18 | 652678937193274320 |
[1,10,90,882,8474,82650,803894,7858034,76833498, 752970088,7385132830,72529933448,712899726610, 7013548687126,69048242750358,680252491600274, 6705715693296522,66139925760268608, 652678937193274320] |