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 | 6 |
3 | 105 |
4 | 3640 |
5 | 208845 |
6 | 17873856 |
7 | 2131900225 |
8 | 337767408000 |
9 | 68586144251625 |
10 | 17361688356812800 |
11 | 5359035747797893161 |
12 | 1980990543353657472000 |
13 | 863884504344556052483125 |
14 | 438824910158909833337856000 |
15 | 256841080519120696725634418625 |
16 | 171586094900260237697765926076416 |