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 | 4 |
| 4 | 5 |
| 5 | 7 |
| 6 | 11 |
| 7 | 13 |
| 8 | 17 |
| 9 | 19 |
| 10 | 89 |
| 11 | 163 |
| 12 | 167 |
| 13 | 233 |
| 14 | 251 |
| 15 | 349 |
| 16 | 401 |
| 17 | 757 |
| 18 | 1423 |
| 19 | 3049 |
| 20 | 3643 |
| 21 | 11987 |
| 22 | 19801 |
| 23 | 26393 |
| 24 | 32303 |
| 25 | 35363 |
| 26 | 35863 |
| 27 | 36607 |
| 28 | 36683 |