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) |
---|---|
2 | 1 |
3 | 2 |
4 | 54 |
5 | 108 |
6 | 152 |
7 | 16200 |
8 | 2042460 |
9 | 4416720 |
10 | 9867312 |
11 | 2334364200 |
12 | 421877610 |
13 | 1779700673520 |
14 | 4025593863720 |
15 | 8605596007008 |
16 | 1147797065081426760 |
17 | 2851241701975626960 |
18 | 6723295828605676320 |
19 | 5463472083393768444000 |
20 | 32677216797923569872 |
21 | 29966837620559153371200 |