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 | 461 |
| 3 | 92377 |
| 4 | 269128937219 |
| 5 | 51913710643776705684835559 |
| 6 | 3017467217880703353213932318284163999 |