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 | 1586 |
| 2 | 2710 |
| 3 | 4748 |
| 4 | 8404 |
| 5 | 14946 |
| 6 | 26630 |
| 7 | 47448 |
| 8 | 84424 |
| 9 | 149836 |
| 10 | 264980 |
| 11 | 466456 |
| 12 | 816488 |
| 13 | 1419532 |
| 14 | 2473160 |
| 15 | 4324006 |
| 16 | 7580078 |
| 17 | 13311610 |
| 18 | 23403052 |
| 19 | 41170036 |
| 20 | 72441344 |
| 21 | 127454361 |
| 22 | 224172863 |
| 23 | 394092240 |
| 24 | 692400868 |
| 25 | 1215811672 |
| 26 | 2134163576 |