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 | 26888999 |
| 2 | 26889899 |
| 3 | 26889989 |
| 4 | 26889998 |
| 5 | 26898899 |
| 6 | 26898989 |
| 7 | 26898998 |
| 8 | 26899889 |
| 9 | 26899898 |
| 10 | 26899988 |
| 11 | 26988899 |
| 12 | 26988989 |
| 13 | 26988998 |
| 14 | 26989889 |
| 15 | 26989898 |
| 16 | 26989988 |
| 17 | 26998889 |
| 18 | 26998898 |
| 19 | 26998988 |
| 20 | 26999888 |
| 21 | 28688999 |