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 | 60 |
2 | 13860 |
3 | 4084080 |
4 | 1338557220 |
5 | 465817912560 |
6 | 168470811709200 |
7 | 62588625639883200 |
8 | 23717177328413240100 |
9 | 9124964373613212524400 |
10 | 3553261127084984957001360 |
11 | 1397224499394244497967972800 |
12 | 553883078634868423069470550800 |
13 | 221068174083308549543680044926400 |