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 | 0 |
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 8 |
| 5 | 14 |
| 6 | 22 |
| 7 | 40 |
| 8 | 71 |
| 9 | 126 |
| 10 | 224 |
| 11 | 397 |
| 12 | 721 |
| 13 | 1318 |
| 14 | 2431 |
| 15 | 4531 |
| 16 | 8493 |
| 17 | 15999 |
| 18 | 30234 |
| 19 | 57281 |
| 20 | 108744 |
| 21 | 206868 |
| 22 | 394293 |
| 23 | 752985 |
| 24 | 1440705 |
| 25 | 2761606 |
| 26 | 5302954 |
| 27 | 10200322 |
| 28 | 19652438 |
| 29 | 37921447 |
| 30 | 73277740 |
| 31 | 141783308 |
| 32 | 274656312 |
| 33 | 532615214 |
| 34 | 1033834916 |
| 35 | 2008466475 |
| 36 | 3905027107 |