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 | 43 |
| 7 | 97 |
| 8 | 103 |
| 9 | 157 |
| 10 | 181 |
| 11 | 241 |
| 12 | 271 |
| 13 | 337 |
| 14 | 349 |
| 15 | 409 |
| 16 | 421 |
| 17 | 439 |
| 18 | 547 |
| 19 | 631 |
| 20 | 691 |
| 21 | 733 |
| 22 | 811 |
| 23 | 829 |
| 24 | 937 |
| 25 | 1009 |
| 26 | 1021 |
| 27 | 1039 |
| 28 | 1249 |
| 29 | 1279 |
| 30 | 1291 |
| 31 | 1483 |
| 32 | 1489 |
| 33 | 1597 |
| 34 | 1609 |
| 35 | 1723 |
| 36 | 1867 |
| 37 | 2203 |
| 38 | 2287 |
| 39 | 2383 |
| 40 | 2437 |
| 41 | 2467 |
| 42 | 2539 |
| 43 | 2689 |
| 44 | 2719 |
| 45 | 2887 |
| 46 | 2953 |
| 47 | 3001 |
| 48 | 3109 |
| 49 | 3319 |