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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 11 |
| 2 | 201 |
| 3 | 3001 |
| 4 | 40001 |
| 5 | 500001 |
| 6 | 6000001 |
| 7 | 70000001 |
| 8 | 800000001 |
| 9 | 9000000001 |
| 10 | 100000000001 |
| 11 | 1100000000001 |
| 12 | 12000000000001 |
| 13 | 130000000000001 |
| 14 | 1400000000000001 |
| 15 | 15000000000000001 |
| 16 | 160000000000000001 |
| 17 | 1700000000000000001 |
| 18 | 18000000000000000001 |
[1,11,201,3001,40001,500001,6000001,70000001, 800000001,9000000001,100000000001,1100000000001, 12000000000001,130000000000001,1400000000000001, 15000000000000001,160000000000000001, 1700000000000000001,18000000000000000001] |