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 | 1 |
| 2 | 78 |
| 3 | 171 |
| 4 | 1711 |
| 5 | 8778 |
| 6 | 11781 |
| 7 | 887778 |
| 8 | 1188111 |
| 9 | 18111171 |
| 10 | 71778171 |
| 11 | 88877778 |
| 12 | 811178781 |
| 13 | 7781717881 |
| 14 | 8888777778 |
| 15 | 181877771881 |
| 16 | 887788118778 |
| 17 | 888887777778 |
| 18 | 88877878118778 |
| 19 | 88888877777778 |
| 20 | 181887881178871 |
| 21 | 8888778778118778 |
| 22 | 8888888777777778 |
| 23 | 117888788817817111 |