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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 9 |
| 2 | 90 |
| 3 | 891 |
| 4 | 8829 |
| 5 | 87480 |
| 6 | 866781 |
| 7 | 8588349 |
| 8 | 85096170 |
| 9 | 843160671 |
| 10 | 8354311569 |
| 11 | 82777250160 |
| 12 | 820184055561 |
| 13 | 8126651751489 |
| 14 | 80521522263450 |
| 15 | 797833566134451 |
| 16 | 7905195795581109 |
| 17 | 78327264255440040 |
| 18 | 776092140459190341 |
| 19 | 7689774642431673429 |
| 20 | 76192801046017773930 |
[1,9,90,891,8829,87480,866781,8588349,85096170, 843160671,8354311569,82777250160,820184055561, 8126651751489,80521522263450,797833566134451, 7905195795581109,78327264255440040, 776092140459190341,7689774642431673429, 76192801046017773930] |