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 | 622 |
| 2 | 386884 |
| 3 | 240641848 |
| 4 | 119453097281 |
| 5 | 54331933243657 |
| 6 | 22512810387947289 |
| 7 | 8694139636843767211 |
| 8 | 3161840103618790632192 |