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 | 13 |
| 3 | 41 |
| 4 | 313 |
| 5 | 1013 |
| 6 | 1861 |
| 7 | 3613 |
| 8 | 7321 |
| 9 | 9941 |
| 10 | 10513 |
| 11 | 13613 |
| 12 | 20201 |
| 13 | 21013 |
| 14 | 34061 |
| 15 | 52813 |
| 16 | 59513 |
| 17 | 99013 |
| 18 | 218461 |
| 19 | 277513 |
| 20 | 353641 |
| 21 | 370661 |
| 22 | 391613 |
| 23 | 424121 |
| 24 | 427813 |
| 25 | 481181 |
| 26 | 584281 |
| 27 | 632813 |
| 28 | 702113 |
| 29 | 750313 |
| 30 | 820481 |
| 31 | 825613 |
| 32 | 904513 |
| 33 | 1073113 |