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) |
|---|---|
| 3 | 0 |
| 4 | 16 |
| 5 | 80 |
| 6 | 516 |
| 7 | 3794 |
| 8 | 31456 |
| 9 | 290970 |
| 10 | 2974380 |
| 11 | 33311520 |
| 12 | 405773448 |
| 13 | 5342413414 |
| 14 | 75612301688 |