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 | 1 |
2 | 20 |
3 | 1280 |
4 | 262400 |
5 | 172336640 |
6 | 362631649280 |
7 | 2444725581455360 |
8 | 52804515715254149120 |
9 | 3654168284344820145766400 |
10 | 810181920328696211112009728000 |
11 | 575510260400583306243122436913233920 |