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 | 6 |
| 2 | 78 |
| 3 | 496 |
| 4 | 8778 |
| 5 | 58996 |
| 6 | 887778 |
| 7 | 5897895 |
| 8 | 88877778 |
| 9 | 686999778 |
| 10 | 9876799878 |
| 11 | 89996788896 |
| 12 | 777887999778 |
| 13 | 7798988788878 |
| 14 | 77779987999896 |
| 15 | 589598998999878 |
| 16 | 7898898998885986 |
| 17 | 78999997699698778 |
| 18 | 999699998689998991 |