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 | 2 |
2 | 72 |
3 | 288 |
4 | 2073600 |
5 | 33177600 |
6 | 561842749440 |
7 | 179789679820800 |
8 | 704200217922109440000 |
9 | 180275255788060016640000 |
10 | 1246394851358539387238350848000 |
11 | 6381541638955721662660356341760000 |
12 | 292214732887898713986916575925267070976000000 |