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) |
|---|---|
| 3 | 6 |
| 4 | 12 |
| 5 | 23 |
| 6 | 47 |
| 7 | 97 |
| 8 | 191 |
| 9 | 383 |
| 10 | 761 |
| 11 | 1523 |
| 12 | 3049 |
| 13 | 6107 |
| 14 | 12252 |
| 15 | 24376 |
| 16 | 48877 |
| 17 | 97777 |
| 18 | 195659 |
| 19 | 391623 |
| 20 | 783257 |
| 21 | 1566386 |
| 22 | 3133974 |
| 23 | 6269116 |
| 24 | 12538053 |
| 25 | 25082361 |
| 26 | 50170976 |
| 27 | 100353498 |
| 28 | 200730129 |
| 29 | 401498897 |
| 30 | 803081460 |
| 31 | 1606292647 |
| 32 | 3212862108 |