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 | 4 |
| 2 | 14 |
| 3 | 65 |
| 4 | 429 |
| 5 | 3804 |
| 6 | 37216 |
| 7 | 371464 |
| 8 | 3702470 |
| 9 | 36999540 |
| 10 | 369917405 |