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) |
|---|---|
| 0 | 2 |
| 1 | 5 |
| 2 | 23 |
| 3 | 83 |
| 4 | 536 |
| 5 | 2519 |
| 6 | 45359 |
| 7 | 16736 |
| 8 | 743398 |
| 9 | 1908958 |
| 10 | 3386606 |
| 11 | 9295535 |