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 | 3 |
| 2 | 31 |
| 3 | 3111 |
| 4 | 3113 |
| 5 | 311231 |
| 6 | 3112213111 |
| 7 | 311222113113 |
| 8 | 31122312311231 |
| 9 | 3112223111213112213111 |
| 10 | 31122331132111311222113113 |
| 11 | 311222321231211331122312311231 |