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 | 2 |
2 | 24 |
3 | 2520 |
4 | 604800 |
5 | 54486432000 |
6 | 53353114214400 |
7 | 35905578804006912000 |
8 | 80018147048929689600000 |
9 | 203939450748460387344384000000 |
10 | 1441310123089178548721360295690240000000 |
11 | 9218619547278385997621820451234775040000000 |