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 | 7744 |
| 2 | 5500002244 |
| 3 | 11122233444 |
| 4 | 8844449977444 |
| 5 | 992255544007744 |
| 6 | 5599881199880003344 |
| 7 | 22233777661111993344 |
| 8 | 448855114422552277444 |
| 9 | 6633366633992211177744 |
| 10 | 8882255222228844776644 |
| 11 | 8888224466776699333444 |
| 12 | 663336644555994400033344 |
| 13 | 771133335566554442222244 |