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 | 23 |
| 2 | 211 |
| 3 | 223 |
| 4 | 229 |
| 5 | 37 |
| 6 | 311 |
| 7 | 313 |
| 8 | 317 |
| 9 | 331 |
| 10 | 53 |
| 11 | 523 |
| 12 | 73 |
| 13 | 719 |
| 14 | 113 |
| 15 | 1117 |
| 16 | 1123 |
| 17 | 1129 |