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 | 1 |
| 3 | 3 |
| 4 | 5 |
| 5 | 9 |
| 6 | 15 |
| 7 | 27 |
| 8 | 49 |
| 9 | 91 |
| 10 | 169 |
| 11 | 317 |
| 12 | 599 |
| 13 | 1143 |
| 14 | 2197 |
| 15 | 4251 |
| 16 | 8269 |
| 17 | 16161 |
| 18 | 31711 |
| 19 | 62435 |
| 20 | 123273 |
| 21 | 243963 |
| 22 | 483745 |
| 23 | 960725 |
| 24 | 1910503 |
| 25 | 3803295 |
| 26 | 7577933 |
| 27 | 15109499 |
| 28 | 30143973 |
| 29 | 60166553 |
| 30 | 120136687 |
| 31 | 239955563 |
| 32 | 479396897 |
| 33 | 957961755 |
| 34 | 1914577241 |