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 | 13 |
| 3 | 31 |
| 4 | 37 |
| 5 | 271 |
| 6 | 283 |
| 7 | 733 |
| 8 | 757 |
| 9 | 769 |
| 10 | 1009 |
| 11 | 1093 |
| 12 | 2281 |
| 13 | 2467 |
| 14 | 2521 |
| 15 | 2551 |
| 16 | 2917 |
| 17 | 3001 |
| 18 | 3037 |
| 19 | 3163 |
| 20 | 3169 |
| 21 | 3187 |
| 22 | 3271 |
| 23 | 6673 |
| 24 | 7321 |
| 25 | 7573 |
| 26 | 9001 |
| 27 | 9103 |
| 28 | 9733 |
| 29 | 19801 |
| 30 | 19963 |
| 31 | 20011 |
| 32 | 20443 |
| 33 | 20521 |
| 34 | 20533 |
| 35 | 20749 |
| 36 | 21871 |
| 37 | 21961 |
| 38 | 22123 |
| 39 | 22639 |
| 40 | 22717 |
| 41 | 27253 |
| 42 | 28711 |
| 43 | 28759 |
| 44 | 29173 |
| 45 | 29191 |
| 46 | 59077 |
| 47 | 61483 |
| 48 | 61507 |
| 49 | 61561 |
| 50 | 65701 |
| 51 | 65881 |