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 | 2 |
| 3 | 11 |
| 4 | 21 |
| 5 | 112 |
| 6 | 2122 |
| 7 | 1121122 |
| 8 | 2122121122 |
| 9 | 1121122122121122 |
| 10 | 212212112212211211212211 |
| 11 | 112112212212112212211212212112112212 |