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 | 6 |
| 6 | 56 |
| 7 | 343 |
| 8 | 1534 |
| 9 | 6067 |
| 10 | 22162 |
| 11 | 76899 |
| 12 | 257792 |
| 13 | 843616 |
| 14 | 2712241 |
| 15 | 8606426 |
| 16 | 27040628 |
| 17 | 84311895 |