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 | 5 |
| 2 | 7 |
| 3 | 13 |
| 4 | 17 |
| 5 | 19 |
| 6 | 23 |
| 7 | 29 |
| 8 | 31 |
| 9 | 41 |
| 10 | 43 |
| 11 | 47 |
| 12 | 61 |
| 13 | 67 |
| 14 | 71 |
| 15 | 149 |
| 16 | 151 |
| 17 | 157 |
| 18 | 251 |
| 19 | 593 |
| 20 | 601 |
| 21 | 1597 |
| 22 | 1601 |
| 23 | 3299 |
| 24 | 3301 |
| 25 | 3313 |
| 26 | 12637 |