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 | 1 |
3 | 3 |
4 | 384 |
5 | 7044820107264000 |
6 | 43717045185341789547924740349079734434493871700606561180430383632613376000000000000000000000000000000000 |