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 | 2 |
3 | 6 |
4 | 24 |
5 | 280 |
6 | 8640 |
7 | 233520 |
8 | 23157120 |
9 | 5329376640 |
10 | 1314169920000 |
11 | 1016970317932800 |
12 | 1772428331094220800 |
13 | 3441650619022551936000 |
14 | 22088285526822118789785600 |
15 | 291368298787833283829100288000 |