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 | 20 |
| 2 | 111 |
| 3 | 56 |
| 4 | 9041 |
| 5 | 4767 |
| 6 | 674596 |
| 7 | 24611354 |
| 8 | 64653957 |
| 9 | 131278082 |