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 | 7 |
| 3 | 48 |
| 4 | 346 |
| 5 | 3066 |
| 6 | 27754 |
| 7 | 260724 |
| 8 | 2516312 |
| 9 | 24744689 |
| 10 | 245221669 |
| 11 | 2442288495 |