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 | 1123 |
| 2 | 21911 |
| 3 | 3116111 |
| 4 | 11413111 |
| 5 | 12111331 |
| 6 | 14111311 |
| 7 | 316111111 |
| 8 | 1111131821 |
| 9 | 11112119111 |
| 10 | 11161211111 |
| 11 | 111161111311 |
| 12 | 111211231111 |
| 13 | 1111112111191 |
| 14 | 2111191111111 |
| 15 | 11131211113111 |
| 16 | 21111121126111 |
| 17 | 31111127111111 |
| 18 | 111211151611111 |
| 19 | 111211222111123 |
| 20 | 121132111712111 |