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 | 11 |
| 3 | 21 |
| 4 | 111 |
| 5 | 211 |
| 6 | 221 |
| 7 | 321 |
| 8 | 1111 |
| 9 | 2111 |
| 10 | 2211 |
| 11 | 3211 |
| 12 | 2221 |
| 13 | 3221 |
| 14 | 3321 |
| 15 | 4321 |
| 16 | 11111 |
| 17 | 21111 |
| 18 | 22111 |
| 19 | 32111 |
| 20 | 22211 |
| 21 | 32211 |
| 22 | 33211 |
| 23 | 43211 |
| 24 | 22221 |
| 25 | 32221 |
| 26 | 33221 |