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 | 2 |
| 2 | 4 |
| 3 | 32 |
| 4 | 512 |
| 5 | 16896 |
| 6 | 1190144 |
| 7 | 163899904 |
| 8 | 46195853312 |
| 9 | 25585116626944 |
| 10 | 28281621931343872 |