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 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 1 |
| 7 | 1 |
| 8 | 5 |
| 9 | 8 |
| 10 | 22 |
| 11 | 46 |
| 12 | 99 |
| 13 | 224 |
| 14 | 461 |
| 15 | 1013 |
| 16 | 2093 |
| 17 | 4459 |
| 18 | 9388 |
| 19 | 19603 |
| 20 | 40946 |
| 21 | 85087 |
| 22 | 177200 |
| 23 | 366248 |
| 24 | 758686 |
| 25 | 1565038 |
| 26 | 3226717 |
| 27 | 6641105 |
| 28 | 13648299 |
| 29 | 28018956 |
| 30 | 57445770 |
| 31 | 117667693 |
| 32 | 240751326 |
| 33 | 492172466 |
| 34 | 1005221914 |
| 35 | 2051468099 |