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 | 20 |
4 | 1504 |
5 | 948032 |
6 | 5204262912 |
7 | 254112496082944 |
8 | 111879597850371293184 |
9 | 448381477417976615986528256 |
10 | 16469260582635747355818375736459264 |
11 | 5571666891811926168753521842383673521864704 |
12 | 17424018517043252553551626372130243982114254609186816 |