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 | 4 |
| 6 | 8 |
| 7 | 17 |
| 8 | 34 |
| 9 | 71 |
| 10 | 153 |
| 11 | 341 |
| 12 | 782 |
| 13 | 1839 |
| 14 | 4434 |
| 15 | 10935 |
| 16 | 27555 |
| 17 | 70852 |
| 18 | 185686 |
| 19 | 495486 |
| 20 | 1344956 |
| 21 | 3710632 |
| 22 | 10397338 |
| 23 | 29568648 |
| 24 | 85290741 |
| 25 | 249391641 |
| 26 | 738821756 |
| 27 | 2216465268 |
| 28 | 6730493989 |
| 29 | 20678209929 |
| 30 | 64252006059 |
| 31 | 201840008711 |
| 32 | 640802084315 |