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 | 699612310033197642547200 |
2 | 124190524600592082795473760093457612800 |
3 | 447244452196213365088128369288351077766266880000 |
4 | 78616578542037111790447631835937500000000000000000000000 |
5 | 13191313011550511408913226688319815618147473583337425366223421440000 |