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) |
|---|---|
| 2 | 0 |
| 3 | 64 |
| 4 | 4832 |
| 5 | 450473 |
| 6 | 57412424 |
| 7 | 1363499112 |
| 8 | 14031503424 |
| 9 | 90356045683 |
| 10 | 431216399848 |