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 | 1 |
| 1 | 4 |
| 2 | 36 |
| 3 | 528 |
| 4 | 11392 |
| 5 | 334624 |
| 6 | 12677824 |
| 7 | 596369664 |
| 8 | 33872839680 |
| 9 | 2274079648768 |
| 10 | 177449470237696 |