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 | 0 |
| 2 | 14 |
| 3 | 393 |
| 4 | 4761 |
| 5 | 47938 |
| 6 | 456157 |
| 7 | 4293575 |
| 8 | 40357922 |