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 | 19 |
| 5 | 23 |
| 6 | 31 |
| 7 | 43 |
| 8 | 73 |
| 9 | 83 |
| 10 | 103 |
| 11 | 109 |
| 12 | 139 |
| 13 | 199 |
| 14 | 229 |
| 15 | 283 |
| 16 | 313 |
| 17 | 463 |
| 18 | 503 |
| 19 | 619 |
| 20 | 829 |
| 21 | 859 |
| 22 | 883 |
| 23 | 1093 |
| 24 | 1303 |
| 25 | 1429 |
| 26 | 1453 |