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 | 2 |
| 2 | 8408 |
| 3 | 481044 |
| 4 | 189961452 |
| 5 | 75370122528 |
| 6 | 75370124832 |
| 7 | 4086199302976 |
| 8 | 221945984411264 |