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 | 1 |
| 2 | 2 |
| 3 | 26 |
| 4 | 184 |
| 5 | 5408 |
| 6 | 165200 |
| 7 | 16544206 |
| 8 | 2117012786 |
| 9 | 779857304215 |
| 10 | 396015611721478 |
| 11 | 546971557228648382 |