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 | 11 |
| 2 | 787 |
| 3 | 22259 |
| 4 | 70879 |
| 5 | 607889 |
| 6 | 4456789 |
| 7 | 40456789 |
| 8 | 304456879 |
| 9 | 1123465789 |
| 10 | 10123457689 |