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 | 2 |
3 | 48 |
4 | 4480 |
5 | 2887680 |
6 | 5373624320 |
7 | 44196975083520 |
8 | 1442855588252876800 |
9 | 188570467779447305011200 |
10 | 98800579402758985681259724800 |
11 | 207089099087390763078860569942425600 |