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 | 32 |
| 3 | 4558 |
| 4 | 2360544 |
| 5 | 6345491150 |
| 6 | 100825279690194 |
| 7 | 10174217016822816668 |
| 8 | 6850575319751106211878878 |