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) |
---|---|
2 | 25920 |
3 | 4585351680 |
4 | 65784756654489600 |
5 | 76457792934119864313446400 |
6 | 7197966128645938515382156481789952000 |
7 | 54888780931741129517511777421088069718405808128000 |