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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 101 |
| 3 | 1011101 |
| 4 | 1011212121101 |
| 5 | 101122324343423221101 |
| 6 | 1011224355769798979675534221101 |
| 7 | 1011224467004378104253524007733996644221101 |