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 | 4 |
| 3 | 8 |
| 4 | 14 |
| 5 | 22 |
| 6 | 34 |
| 7 | 52 |
| 8 | 80 |
| 9 | 122 |
| 10 | 184 |
| 11 | 278 |
| 12 | 418 |
| 13 | 628 |
| 14 | 944 |
| 15 | 1418 |
| 16 | 2128 |
| 17 | 3194 |
| 18 | 4792 |
| 19 | 7190 |
| 20 | 10786 |
| 21 | 16180 |
| 22 | 24272 |
| 23 | 36410 |
| 24 | 54616 |
| 25 | 81926 |
| 26 | 122890 |
| 27 | 184336 |
| 28 | 276506 |
| 29 | 414760 |
| 30 | 622142 |
| 31 | 933214 |
| 32 | 1399822 |
| 33 | 2099734 |
| 34 | 3149602 |
| 35 | 4724404 |
| 36 | 7086608 |
| 37 | 10629914 |
| 38 | 15944872 |
| 39 | 23917310 |