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 | 3 |
| 2 | 30 |
| 3 | 293 |
| 4 | 2881 |
| 5 | 28871 |
| 6 | 288685 |
| 7 | 2886366 |
| 8 | 28868362 |
| 9 | 288673693 |
| 10 | 2886752763 |