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 | 2 |
| 2 | 5 |
| 3 | 11 |
| 4 | 239 |
| 5 | 1871 |
| 6 | 4001 |
| 7 | 4397 |
| 8 | 6971 |
| 9 | 12647 |
| 10 | 12689 |
| 11 | 13337 |
| 12 | 13619 |
| 13 | 15401 |
| 14 | 19391 |
| 15 | 19559 |
| 16 | 19739 |
| 17 | 20201 |
| 18 | 20297 |
| 19 | 22871 |
| 20 | 22937 |
| 21 | 28307 |
| 22 | 30029 |
| 23 | 32561 |
| 24 | 36299 |
| 25 | 36929 |
| 26 | 39569 |
| 27 | 44279 |
| 28 | 45497 |
| 29 | 47441 |
| 30 | 48767 |
| 31 | 50069 |
| 32 | 53897 |
| 33 | 55871 |