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 | 31 |
| 2 | 137 |
| 3 | 349 |
| 4 | 773 |
| 5 | 1091 |
| 6 | 1303 |
| 7 | 1409 |
| 8 | 1621 |
| 9 | 2999 |
| 10 | 3529 |
| 11 | 3847 |
| 12 | 4271 |
| 13 | 4483 |
| 14 | 4801 |
| 15 | 5119 |
| 16 | 5437 |
| 17 | 5861 |
| 18 | 6073 |
| 19 | 6709 |
| 20 | 7027 |
| 21 | 7451 |
| 22 | 8087 |
| 23 | 9041 |
| 24 | 9677 |
| 25 | 10313 |
| 26 | 10631 |
| 27 | 10949 |
| 28 | 11161 |
| 29 | 11903 |
| 30 | 12433 |
| 31 | 12539 |
| 32 | 14341 |
| 33 | 14447 |
| 34 | 15083 |
| 35 | 15401 |
| 36 | 16249 |
| 37 | 16567 |
| 38 | 16673 |
| 39 | 17203 |
| 40 | 17627 |
| 41 | 17839 |