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 | 14 |
| 4 | 28 |
| 5 | 64 |
| 6 | 133 |
| 7 | 266 |
| 8 | 513 |
| 9 | 1000 |
| 10 | 1873 |
| 11 | 3420 |
| 12 | 6257 |
| 13 | 11078 |
| 14 | 19585 |
| 15 | 34192 |
| 16 | 58714 |
| 17 | 99870 |
| 18 | 168858 |
| 19 | 281666 |
| 20 | 467082 |
| 21 | 768994 |
| 22 | 1253038 |
| 23 | 2030658 |
| 24 | 3269551 |
| 25 | 5227868 |
| 26 | 8304467 |
| 27 | 13133256 |
| 28 | 20630535 |
| 29 | 32250274 |
| 30 | 50181624 |
| 31 | 77653530 |
| 32 | 119634925 |
| 33 | 183532470 |
| 34 | 280245365 |