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 | 9 |
| 2 | 171 |
| 3 | 252 |
| 4 | 333 |
| 5 | 414 |
| 6 | 11511 |
| 7 | 12321 |
| 8 | 13131 |
| 9 | 21312 |
| 10 | 22122 |
| 11 | 31113 |
| 12 | 1113111 |
| 13 | 1121211 |
| 14 | 1211121 |
| 15 | 2111112 |
| 16 | 111111111 |