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 | 1 |
| 3 | 8 |
| 4 | 800 |
| 5 | 18783360 |
| 6 | 28634752192836096 |
| 7 | 187118328452563147377366903401859072 |
| 8 | 22533823529098462258163079522899558155141642796614195116180863201125539840 |