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 | 191 |
| 2 | 353 |
| 3 | 13331 |
| 4 | 1123211 |
| 5 | 1221221 |
| 6 | 1303031 |
| 7 | 1311131 |
| 8 | 3103013 |
| 9 | 110232011 |
| 10 | 111050111 |
| 11 | 112030211 |
| 12 | 112111211 |
| 13 | 121111121 |
| 14 | 130030031 |
| 15 | 301111103 |
| 16 | 10000900001 |
| 17 | 10002520001 |
| 18 | 10013131001 |
| 19 | 10111311101 |
| 20 | 10301110301 |