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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 9 |
| 2 | 83 |
| 3 | 779 |
| 4 | 7401 |
| 5 | 70897 |
| 6 | 682891 |
| 7 | 6601539 |
| 8 | 63968273 |
| 9 | 620798489 |
| 10 | 6030711171 |
| 11 | 58622670907 |
| 12 | 570089353081 |
| 13 | 5545446723969 |
| 14 | 53951697045563 |
| 15 | 524954902566899 |
| 16 | 5108224921291041 |
| 17 | 49709349684075817 |
| 18 | 483747874746459571 |
[1,9,83,779,7401,70897,682891,6601539,63968273, 620798489,6030711171,58622670907,570089353081, 5545446723969,53951697045563,524954902566899, 5108224921291041,49709349684075817, 483747874746459571] |