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 | 0 |
2 | -1 |
3 | 65 |
4 | -6720 |
5 | 1080750 |
6 | -252806400 |
7 | 81433562119 |
8 | -34630270976000 |
9 | 18813448225370124 |
10 | -12719917900800000000 |
11 | 10478214213011739186685 |
12 | -10333870908014534470926336 |
13 | 12023263324381930168836397850 |
14 | -16297888825404790818315505238016 |