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 | 6 |
3 | 120 |
4 | 5040 |
5 | 5765760 |
6 | 19275223968000 |
7 | 13644281345408020027550269440000 |
8 | 4402827357584746886229433170489943024971625310770489684257669120000000000 |