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 | 2 |
| 2 | 12 |
| 3 | 1211 |
| 4 | 211211 |
| 5 | 21122112 |
| 6 | 1221222112 |
| 7 | 122132112211 |
| 8 | 2122211213112211 |
| 9 | 21222113111221321112 |
| 10 | 123112131122311321321112 |
| 11 | 123112131112132113222113111221131211 |