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 | 4096 |
| 3 | 5822 |
| 4 | 1250753956 |
| 5 | 278802326676 |
| 6 | 1080371161000000 |
| 7 | 720107530988047980 |
| 8 | 1273696206975009956961 |
| 9 | 1220346471047321694829098 |