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 | 0 |
| 1 | 1 |
| 2 | 32 |
| 3 | 2304 |
| 4 | 524288 |
| 5 | 419430400 |
| 6 | 1236950581248 |
| 7 | 13792273858822144 |
| 8 | 590295810358705651712 |
| 9 | 97922991388784963151200256 |
| 10 | 63382530011411470074835160268800 |