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 | 211 |
| 5 | 221 |
| 6 | 2111 |
| 7 | 2211 |
| 8 | 2221 |
| 9 | 21111 |
| 10 | 21211 |
| 11 | 22111 |
| 12 | 22121 |
| 13 | 22211 |
| 14 | 22221 |
| 15 | 211111 |
| 16 | 212111 |
| 17 | 221111 |
| 18 | 221121 |
| 19 | 221211 |
| 20 | 222111 |
| 21 | 222121 |
| 22 | 222211 |
| 23 | 222221 |
| 24 | 2111111 |
| 25 | 2112111 |
| 26 | 2121111 |
| 27 | 2121211 |
| 28 | 2211111 |
| 29 | 2211121 |
| 30 | 2211211 |
| 31 | 2212111 |
| 32 | 2212121 |
| 33 | 2212211 |
| 34 | 2221111 |
| 35 | 2221121 |