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 | 2 |
3 | 54 |
4 | 4050 |
5 | 1342170 |
6 | 1908852102 |
7 | 11488774559598 |
8 | 288230375950387200 |
9 | 29850020237398244599296 |
10 | 12676506002282260237970435130 |
11 | 21970710674130840874443091905460038 |
12 | 154866286100907105149455216472736043777350 |
13 | 4427744605404865645682169434028029029963535277450 |