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) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 4 |
| 8 | 5 |
| 9 | 18 |
| 10 | 65 |
| 11 | 267 |
| 12 | 1238 |
| 13 | 6196 |
| 14 | 33480 |
| 15 | 187932 |
| 16 | 1095882 |
| 17 | 6629232 |