This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 6999899 |
| 2 | 6999989 |
| 3 | 7799999 |
| 4 | 7899989 |
| 5 | 8789999 |
| 6 | 8799899 |
| 7 | 8879999 |
| 8 | 8899799 |
| 9 | 8899997 |
| 10 | 8988989 |
| 11 | 8998889 |
| 12 | 8999699 |
| 13 | 8999789 |
| 14 | 8999897 |
| 15 | 9797999 |
| 16 | 9799997 |
| 17 | 9869999 |
| 18 | 9889799 |
| 19 | 9889889 |
| 20 | 9898799 |