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 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 5 |
| 7 | 10 |
| 8 | 18 |
| 9 | 33 |
| 10 | 66 |
| 11 | 127 |
| 12 | 244 |
| 13 | 506 |
| 14 | 1009 |
| 15 | 2018 |
| 16 | 4229 |
| 17 | 8631 |
| 18 | 17631 |
| 19 | 37265 |
| 20 | 77349 |
| 21 | 160433 |
| 22 | 342807 |
| 23 | 720334 |
| 24 | 1513791 |
| 25 | 3254445 |
| 26 | 6902283 |
| 27 | 14634519 |
| 28 | 31602375 |
| 29 | 67522598 |
| 30 | 144182089 |
| 31 | 312851626 |
| 32 | 672411931 |
| 33 | 1444776938 |
| 34 | 3145883976 |
| 35 | 6794243911 |
| 36 | 14667444523 |