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 | 2 |
| 1 | 3 |
| 2 | 5 |
| 3 | 11 |
| 4 | 13 |
| 5 | 41 |
| 6 | 53 |
| 7 | 83 |
| 8 | 131 |
| 9 | 269 |
| 10 | 109 |
| 11 | 467 |
| 12 | 421 |
| 13 | 1907 |
| 14 | 1607 |
| 15 | 2543 |
| 16 | 1559 |
| 17 | 5443 |
| 18 | 5711 |
| 19 | 8867 |
| 20 | 21319 |
| 21 | 15401 |
| 22 | 8941 |
| 23 | 20747 |
| 24 | 68903 |
| 25 | 136223 |
| 26 | 107119 |
| 27 | 65129 |
| 28 | 13381 |
| 29 | 52361 |
| 30 | 31391 |