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 | 7 |
| 3 | 31 |
| 4 | 37 |
| 5 | 97 |
| 6 | 139 |
| 7 | 157 |
| 8 | 199 |
| 9 | 211 |
| 10 | 229 |
| 11 | 271 |
| 12 | 307 |
| 13 | 331 |
| 14 | 337 |
| 15 | 367 |
| 16 | 379 |
| 17 | 439 |
| 18 | 499 |
| 19 | 547 |
| 20 | 577 |
| 21 | 601 |
| 22 | 607 |
| 23 | 619 |
| 24 | 691 |
| 25 | 727 |
| 26 | 811 |