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 | 2 |
| 2 | 5 |
| 3 | 10 |
| 4 | 24 |
| 5 | 38 |
| 6 | 87 |
| 7 | 172 |
| 8 | 349 |
| 9 | 706 |
| 10 | 1407 |
| 11 | 2752 |
| 12 | 5487 |
| 13 | 11103 |
| 14 | 22285 |
| 15 | 44429 |
| 16 | 88993 |
| 17 | 177746 |
| 18 | 356460 |
| 19 | 712129 |
| 20 | 1425163 |
| 21 | 2849424 |
| 22 | 5701776 |
| 23 | 11401709 |
| 24 | 22804522 |
| 25 | 45608572 |
| 26 | 91219022 |
| 27 | 182438457 |
| 28 | 364879209 |
| 29 | 729757797 |
| 30 | 1459514883 |
| 31 | 2919031155 |
| 32 | 5838065175 |
| 33 | 11676129412 |
| 34 | 23352260426 |