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 | 26899889 |
| 2 | 28698899 |
| 3 | 28699889 |
| 4 | 28869989 |
| 5 | 28889699 |
| 6 | 28899869 |
| 7 | 28989689 |
| 8 | 29868989 |
| 9 | 29888699 |
| 10 | 29968889 |
| 11 | 29988869 |
| 12 | 38849989 |
| 13 | 38894899 |
| 14 | 38898949 |
| 15 | 38899489 |
| 16 | 38984989 |
| 17 | 39849889 |
| 18 | 43898989 |
| 19 | 43988899 |
| 20 | 43989889 |
| 21 | 46668899 |