cp's OEIS Frontend

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.

A337893 Array read by descending antidiagonals: T(n,k) is the number of chiral pairs of colorings of the faces of a regular n-dimensional orthoplex (cross polytope) using k or fewer colors.

Table of values

n a(n)
2 0
3 0
4 0
5 0
6 1
7 0
8 0
9 66
10 11158298
11 0
12 0
13 920
14 4825452718593
15 314824333015938998688
16 0
17 0
18 6350
19 48038354542204960
20 38491882659300767730994725249684096
21 31716615393292685397985382790580028572676096
22 0

List of values

[0, 0, 0, 0, 1, 0, 0, 66, 11158298, 0, 0, 920, 4825452718593, 314824333015938998688, 0, 0, 6350, 48038354542204960, 38491882659300767730994725249684096, 31716615393292685397985382790580028572676096, 0]