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 | 7 |
| 4 | 11 |
| 5 | 18 |
| 6 | 30 |
| 7 | 49 |
| 8 | 79 |
| 9 | 129 |
| 10 | 209 |
| 11 | 338 |
| 12 | 547 |
| 13 | 886 |
| 14 | 1434 |
| 15 | 2320 |
| 16 | 3754 |
| 17 | 6075 |
| 18 | 9830 |
| 19 | 15905 |
| 20 | 25735 |
| 21 | 41641 |
| 22 | 67376 |
| 23 | 109017 |
| 24 | 176394 |
| 25 | 285412 |
| 26 | 461806 |
| 27 | 747218 |
| 28 | 1209024 |