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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 10 |
| 3 | 19 |
| 4 | 100 |
| 5 | 278 |
| 6 | 1000 |
| 7 | 10000 |
| 8 | 100000 |
| 9 | 486935 |
| 10 | 1000000 |
| 11 | 4747520 |
| 12 | 10000000 |
| 13 | 100000000 |
| 14 | 112033551 |
| 15 | 181695081 |
| 16 | 499895124 |
| 17 | 979848425 |
| 18 | 1000000000 |
| 19 | 10000000000 |
| 20 | 19412627434 |
| 21 | 100000000000 |
[1,10,19,100,278,1000,10000,100000,486935,1000000, 4747520,10000000,100000000,112033551,181695081, 499895124,979848425,1000000000,10000000000, 19412627434,100000000000] |