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 | 0 |
2 | 0 |
3 | 0 |
4 | 24 |
5 | 240 |
6 | 2040 |
7 | 17640 |
8 | 182616 |
9 | 2340576 |
10 | 34907520 |
11 | 567732000 |
12 | 9811675104 |
13 | 179804319552 |
14 | 3507724531584 |
15 | 72964001073600 |
16 | 1614757714491456 |
17 | 37860036000293376 |
18 | 936291898320463872 |
19 | 24333527620574701056 |
20 | 662723505438520771584 |
21 | 18871765275000834201600 |