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 | 3 |
| 3 | 12 |
| 4 | 23 |
| 5 | 32 |
| 6 | 43 |
| 7 | 232 |
| 8 | 243 |
| 9 | 412 |
| 10 | 423 |
| 11 | 2232 |
| 12 | 4412 |
| 13 | 4423 |
| 14 | 22232 |
| 15 | 222232 |