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 | 2 |
| 2 | 3 |
| 3 | 11 |
| 4 | 101 |
| 5 | 131 |
| 6 | 323 |
| 7 | 10001 |
| 8 | 11311 |
| 9 | 12121 |
| 10 | 13031 |
| 11 | 13331 |
| 12 | 30103 |
| 13 | 31013 |
| 14 | 31313 |
| 15 | 32023 |
| 16 | 33133 |
| 17 | 1003001 |
| 18 | 1013101 |
| 19 | 1101011 |
| 20 | 1120211 |
| 21 | 1123211 |
| 22 | 1133311 |
| 23 | 1201021 |
| 24 | 1212121 |
| 25 | 1221221 |
| 26 | 1302031 |
| 27 | 1311131 |
| 28 | 1321231 |