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 | 3 |
| 3 | 35 |
| 4 | 245 |
| 5 | 11609 |
| 6 | 28379 |
| 7 | 171899 |
| 8 | 1043710445728 |
| 9 | 2197379769828 |
| 10 | 2642166652554084 |