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 | 2 |
2 | 8520192 |
3 | 956147263254051187507200 |
4 | 790929096572487518050439299107158612099228070051840000 |
5 | 266108022587896795750359251172229660295854509829286134803404773931312693787460334360985600000000000 |