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) |
---|---|
0 | 1 |
1 | 3628800 |
2 | 2432902008176640000 |
3 | 265252859812191058636308480000000 |
4 | 815915283247897734345611269596115894272000000000 |
5 | 30414093201713378043612608166064768844377641568960512000000000000 |