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 | 3 |
| 3 | 6 |
| 4 | 13 |
| 5 | 24 |
| 6 | 47 |
| 7 | 83 |
| 8 | 152 |
| 9 | 263 |
| 10 | 457 |
| 11 | 768 |
| 12 | 1292 |
| 13 | 2118 |
| 14 | 3462 |
| 15 | 5564 |
| 16 | 8888 |
| 17 | 14016 |
| 18 | 21973 |
| 19 | 34081 |
| 20 | 52552 |
| 21 | 80331 |
| 22 | 122078 |
| 23 | 184161 |
| 24 | 276303 |
| 25 | 411870 |
| 26 | 610818 |
| 27 | 900721 |
| 28 | 1321848 |
| 29 | 1929981 |
| 30 | 2805338 |
| 31 | 4058812 |
| 32 | 5847966 |
| 33 | 8390097 |
| 34 | 11990531 |
| 35 | 17069145 |
| 36 | 24210571 |
| 37 | 34215537 |
| 38 | 48190451 |
| 39 | 67644522 |