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 | 47377612800 |
2 | 131569513308979200 |
3 | 4408780839651901440000 |
4 | 13946558535000000000000000 |
5 | 2596509480922336727312302080000 |
6 | 319368723699461283992462111539200 |
7 | 22246837484597339860644476682240000 |