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.

A337894 Array read by descending antidiagonals: T(n,k) is the number of achiral colorings of the faces of a regular n-dimensional orthoplex (cross polytope) using k or fewer colors.

Table of values

n a(n)
2 1
3 2
4 1
5 3
6 21
7 1
8 4
9 201
10 93024
11 1
12 5
13 1076
14 294157089
15 199556208371776
16 1
17 6
18 4025
19 91983927296
20 1370366433970979158839987
21 346179533768149850758531729588224
22 1

List of values

[1, 2, 1, 3, 21, 1, 4, 201, 93024, 1, 5, 1076, 294157089, 199556208371776, 1, 6, 4025, 91983927296, 1370366433970979158839987, 346179533768149850758531729588224, 1]