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 | 3 |
| 2 | 5 |
| 3 | 7 |
| 4 | 33 |
| 5 | 45 |
| 6 | 105 |
| 7 | 197 |
| 8 | 199 |
| 9 | 281 |
| 10 | 301 |
| 11 | 317 |
| 12 | 1107 |
| 13 | 1657 |
| 14 | 3395 |
| 15 | 35925 |
| 16 | 37597 |
| 17 | 64305 |
| 18 | 80139 |
| 19 | 221631 |