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) |
|---|---|
| 2 | 22 |
| 3 | 9482 |
| 4 | 112269228 |
| 5 | 37515056726494 |
| 6 | 355023905438833546724 |