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 | 21 |
| 4 | 22 |
| 5 | 221 |
| 6 | 212 |
| 7 | 2121 |
| 8 | 222 |
| 9 | 2221 |
| 10 | 2212 |
| 11 | 22121 |
| 12 | 2122 |
| 13 | 21221 |
| 14 | 21212 |
| 15 | 212121 |
| 16 | 2222 |
| 17 | 22221 |
| 18 | 22212 |
| 19 | 222121 |
| 20 | 22122 |
| 21 | 221221 |
| 22 | 221212 |
| 23 | 2212121 |
| 24 | 21222 |
| 25 | 212221 |
| 26 | 212212 |
| 27 | 2122121 |
| 28 | 212122 |
| 29 | 2121221 |
| 30 | 2121212 |
| 31 | 21212121 |
| 32 | 22222 |
| 33 | 222221 |
| 34 | 222212 |
| 35 | 2222121 |
| 36 | 222122 |
| 37 | 2221221 |