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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 7 |
| 6 | 15 |
| 7 | 24 |
| 8 | 49 |
| 9 | 91 |
| 10 | 182 |
| 11 | 344 |
| 12 | 688 |
| 13 | 1328 |
| 14 | 2641 |
| 15 | 5182 |
| 16 | 10288 |
| 17 | 20240 |
| 18 | 40014 |
| 19 | 78577 |
| 20 | 154562 |
| 21 | 302511 |
| 22 | 590930 |
| 23 | 1147805 |
| 24 | 2219309 |
| 25 | 4260085 |
| 26 | 8118169 |
| 27 | 15324786 |
| 28 | 28630807 |
| 29 | 52826179 |
| 30 | 96109611 |
| 31 | 172029602 |
| 32 | 302353990 |
| 33 | 520508934 |
| 34 | 875430977 |
| 35 | 1433922264 |
| 36 | 2279645080 |
| 37 | 3503957379 |