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 | 2 |
| 3 | 2 |
| 4 | 4 |
| 5 | 9 |
| 6 | 16 |
| 7 | 29 |
| 8 | 56 |
| 9 | 106 |
| 10 | 198 |
| 11 | 373 |
| 12 | 704 |
| 13 | 1325 |
| 14 | 2494 |
| 15 | 4698 |
| 16 | 8848 |
| 17 | 16661 |
| 18 | 31376 |
| 19 | 59089 |
| 20 | 111276 |
| 21 | 209554 |
| 22 | 394634 |
| 23 | 743177 |
| 24 | 1399552 |
| 25 | 2635641 |
| 26 | 4963450 |
| 27 | 9347186 |
| 28 | 17602652 |
| 29 | 33149377 |
| 30 | 62427024 |
| 31 | 117562789 |
| 32 | 221394656 |
| 33 | 416931194 |
| 34 | 785166286 |