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 | 3 |
| 2 | 78 |
| 3 | 378 |
| 4 | 8778 |
| 5 | 887778 |
| 6 | 88877778 |
| 7 | 8787733878 |
| 8 | 8888777778 |
| 9 | 73778888778 |
| 10 | 888887777778 |
| 11 | 8883333788878 |
| 12 | 37383337333378 |
| 13 | 88888877777778 |
| 14 | 8888888777777778 |
| 15 | 888888887777777778 |
| 16 | 88888888877777777778 |
| 17 | 8888888888777777777778 |
| 18 | 887783783833373788333378 |