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) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 160 |
4 | 107520 |
5 | 1722040320 |
6 | 854352419880960 |
7 | 16185399027773630054400 |
8 | 13931397052191274338996977664000 |
9 | 632089112919018408339999461491467091968000 |
10 | 1721041721929360607907210006858724622834371563356160000 |