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 | 111 |
| 3 | 212 |
| 4 | 12121 |
| 5 | 20102 |
| 6 | 22122 |
| 7 | 1001001 |
| 8 | 1021201 |
| 9 | 1111111 |
| 10 | 1201021 |
| 11 | 1221221 |
| 12 | 2001002 |
| 13 | 2021202 |
| 14 | 2101012 |
| 15 | 2111112 |
| 16 | 2121212 |
| 17 | 2201022 |
| 18 | 2211122 |
| 19 | 102111201 |
| 20 | 110111011 |