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 | 13 |
| 4 | 19 |
| 5 | 31 |
| 6 | 37 |
| 7 | 43 |
| 8 | 61 |
| 9 | 67 |
| 10 | 73 |
| 11 | 79 |
| 12 | 127 |
| 13 | 163 |
| 14 | 199 |
| 15 | 223 |
| 16 | 307 |
| 17 | 313 |
| 18 | 349 |
| 19 | 397 |
| 20 | 433 |
| 21 | 523 |
| 22 | 541 |
| 23 | 613 |
| 24 | 619 |
| 25 | 709 |
| 26 | 823 |
| 27 | 907 |
| 28 | 1087 |
| 29 | 1123 |
| 30 | 1129 |
| 31 | 1213 |
| 32 | 1279 |
| 33 | 1531 |