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 | 144 |
3 | 6065280 |
4 | 4952179814400 |
5 | 1289512799941305139200 |
6 | 6762844700608770238252960972800 |
7 | 11470635634813395742481912276441576767488000 |
8 | 393736985584514548835738283681336315795223487793070080000 |