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 | 3 |
| 4 | 211 |
| 5 | 23 |
| 6 | 2112 |
| 7 | 3211 |
| 8 | 2321 |
| 9 | 12321 |
| 10 | 123211 |
| 11 | 232112 |
| 12 | 321123 |
| 13 | 21123211 |
| 14 | 2321123 |
| 15 | 211232112 |
| 16 | 321123211 |
| 17 | 232112321 |
| 18 | 1232112321 |
| 19 | 12321123211 |
| 20 | 23211232112 |
| 21 | 32112321123 |
| 22 | 2112321123211 |
| 23 | 232112321123 |
| 24 | 21123211232112 |
| 25 | 32112321123211 |
| 26 | 23211232112321 |
| 27 | 123211232112321 |