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 | 277777788888899 |
| 2 | 277777788888989 |
| 3 | 277777788888998 |
| 4 | 277777788889889 |
| 5 | 277777788889898 |
| 6 | 277777788889988 |
| 7 | 277777788898889 |
| 8 | 277777788898898 |
| 9 | 277777788898988 |
| 10 | 277777788899888 |
| 11 | 277777788988889 |
| 12 | 277777788988898 |
| 13 | 277777788988988 |
| 14 | 277777788989888 |
| 15 | 277777788998888 |