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 | 31 |
| 5 | 37 |
| 6 | 67 |
| 7 | 127 |
| 8 | 211 |
| 9 | 307 |
| 10 | 409 |
| 11 | 487 |
| 12 | 541 |
| 13 | 577 |
| 14 | 631 |
| 15 | 769 |
| 16 | 787 |
| 17 | 937 |
| 18 | 991 |
| 19 | 1009 |
| 20 | 1039 |
| 21 | 1117 |
| 22 | 1201 |
| 23 | 1291 |
| 24 | 1459 |
| 25 | 1471 |
| 26 | 1567 |
| 27 | 1777 |
| 28 | 1801 |
| 29 | 2251 |
| 30 | 2281 |
| 31 | 2467 |
| 32 | 2557 |
| 33 | 2647 |
| 34 | 2971 |
| 35 | 3037 |
| 36 | 3187 |
| 37 | 3259 |
| 38 | 3307 |
| 39 | 3559 |
| 40 | 3709 |
| 41 | 3847 |
| 42 | 3889 |
| 43 | 4441 |
| 44 | 4567 |
| 45 | 4801 |
| 46 | 4969 |
| 47 | 4987 |