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 | 485 |
| 2 | 569 |
| 3 | 689 |
| 4 | 2221 |
| 5 | 2845 |
| 6 | 3649 |
| 7 | 12841 |
| 8 | 16501 |
| 9 | 21205 |
| 10 | 74825 |
| 11 | 96161 |
| 12 | 123581 |
| 13 | 436109 |
| 14 | 560465 |
| 15 | 720281 |
| 16 | 2541829 |
| 17 | 3266629 |
| 18 | 4198105 |
| 19 | 14814865 |
| 20 | 19039309 |
| 21 | 24468349 |
| 22 | 86347361 |
| 23 | 110969225 |
| 24 | 142611989 |
| 25 | 503269301 |
| 26 | 646776041 |
| 27 | 831203585 |
| 28 | 2933268445 |