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) |
|---|---|
| 0 | 9 |
| 1 | 898 |
| 2 | 88988 |
| 3 | 8889888 |
| 4 | 888898888 |
| 5 | 88888988888 |
| 6 | 8888889888888 |
| 7 | 888888898888888 |
| 8 | 88888888988888888 |
| 9 | 8888888889888888888 |
| 10 | 888888888898888888888 |
| 11 | 88888888888988888888888 |
| 12 | 8888888888889888888888888 |
| 13 | 888888888888898888888888888 |
| 14 | 88888888888888988888888888888 |
| 15 | 8888888888888889888888888888888 |