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 | 1 |
2 | 3674160 |
3 | 43252003274489856000 |
4 | 707195371192426622240452051915172831683411968000000000 |
5 | 2582636272886959379162819698174683585918088940054237132144778804568925405184000000000000000 |