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 | 10 |
3 | 280 |
4 | 71960 |
5 | 224946960 |
6 | 10495350312720 |
7 | 8643382777938679680 |
8 | 145011908479540041684850560 |
9 | 56180584638978557924165229531974400 |
10 | 561805846445966163880630853243909229531974400 |
11 | 160289764609087349005207761687490741791453382934816332800 |