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 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 0 |
| 6 | 6 |
| 7 | 7 |
| 8 | 19 |
| 9 | 9 |
| 10 | 61 |
| 11 | 88 |
| 12 | 226 |
| 13 | 377 |
| 14 | 945 |
| 15 | 1473 |
| 16 | 3427 |
| 17 | 6154 |
| 18 | 13758 |
| 19 | 25327 |
| 20 | 53967 |
| 21 | 102865 |
| 22 | 213345 |
| 23 | 411700 |
| 24 | 849706 |
| 25 | 1661885 |
| 26 | 3382821 |
| 27 | 6668577 |
| 28 | 13493719 |
| 29 | 26725414 |
| 30 | 53861446 |
| 31 | 107074403 |
| 32 | 215261971 |
| 33 | 428704177 |
| 34 | 860266725 |
| 35 | 1715950208 |
| 36 | 3439229842 |
| 37 | 6866462849 |