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 | 8 |
2 | 120 |
3 | 16880 |
4 | 1791651440 |
5 | 990442962518469863888 |
6 | 38923012745870263852909632697729215009690731472 |