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 | 11 |
| 2 | 31 |
| 3 | 4113 |
| 4 | 612314 |
| 5 | 8112332416 |
| 6 | 1113253342618 |
| 7 | 131528344153628111 |
| 8 | 1617210364354648211113 |
| 9 | 181921239445661758110311213116 |
| 10 | 2211121431146586276829210411112313216118 |