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 | 55 |
| 2 | 78 |
| 3 | 5778 |
| 4 | 7875 |
| 5 | 8778 |
| 6 | 75855 |
| 7 | 887778 |
| 8 | 7575778 |
| 9 | 55888878 |
| 10 | 57775875 |
| 11 | 87787875 |
| 12 | 88877778 |
| 13 | 5587777755 |
| 14 | 8888777778 |
| 15 | 787575878775 |
| 16 | 888887777778 |
| 17 | 8857787887578 |
| 18 | 88888877777778 |
| 19 | 5777878558877778 |
| 20 | 8888888777777778 |
| 21 | 555875575755575778 |
| 22 | 888888887777777778 |