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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 8 |
| 3 | 59942025 |
| 4 | 239830737497318918172122578944 |
| 5 | 788243862228623056807478850630904903414781894638966172447366478063616699218750 |