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 | 3 |
| 3 | 1431 |
| 4 | 33411 |
| 5 | 331441131 |
| 6 | 1444343131 |
| 7 | 13113334431 |
| 8 | 31444341333441 |
| 9 | 111413314441131 |
| 10 | 444334341314331 |
| 11 | 11114441143333344141 |
| 12 | 331341331134344133331 |
| 13 | 4443314433131433343331311434133434431331 |