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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 11 |
| 3 | 19 |
| 4 | 371 |
| 5 | 1891 |
| 6 | 36911 |
| 7 | 189091 |
| 8 | 3690911 |
| 9 | 18909091 |
| 10 | 369090911 |
| 11 | 1890909091 |
| 12 | 36909090911 |
| 13 | 189090909091 |
| 14 | 3690909090911 |
| 15 | 18909090909091 |
| 16 | 369090909090911 |
| 17 | 1890909090909091 |
[1,11,19,371,1891,36911,189091,3690911,18909091, 369090911,1890909091,36909090911,189090909091, 3690909090911,18909090909091,369090909090911, 1890909090909091] |