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 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 3 |
| 8 | 6 |
| 9 | 10 |
| 10 | 21 |
| 11 | 39 |
| 12 | 82 |
| 13 | 167 |
| 14 | 360 |
| 15 | 766 |
| 16 | 1692 |
| 17 | 3726 |
| 18 | 8370 |
| 19 | 18866 |
| 20 | 43029 |
| 21 | 98581 |
| 22 | 227678 |
| 23 | 528196 |
| 24 | 1232541 |
| 25 | 2888142 |
| 26 | 6798293 |
| 27 | 16061348 |
| 28 | 38086682 |
| 29 | 90607902 |
| 30 | 216230205 |
| 31 | 517482053 |
| 32 | 1241778985 |
| 33 | 2987268628 |
| 34 | 7203242490 |