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 | 0 |
| 2 | 1 |
| 3 | 12 |
| 4 | 21 |
| 5 | 22422 |
| 6 | 24223 |
| 7 | 33333 |
| 8 | 34441524 |
| 9 | 4242436235 |
| 10 | 23443535352 |
| 11 | 34462443242 |
| 12 | 35256523324 |
| 13 | 4341535435353 |
| 14 | 4645441523344 |
| 15 | 5244526446515 |
| 16 | 5335524234335 |