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.

A325017 Triangle read by rows: T(n,k) is the number of unoriented colorings of the facets of a regular n-dimensional orthoplex using exactly k colors. Row n has 2^n columns.

Table of values

n a(n)
1 1
2 1
3 1
4 4
5 6
6 3
7 1
8 20
9 204
10 1056
11 2850
12 4080
13 2940
14 840
15 1
16 400
17 130899
18 11230666
19 347919225
20 5158324560
21 43174480650
22 225086553300
23 775894225050
24 1831178115900
25 3008073915000
26 3439243962000
27 2685727044000
28 1366701336000
29 408648240000
30 54486432000

List of values

[1, 1, 1, 4, 6, 3, 1, 20, 204, 1056, 2850, 4080, 2940, 840, 1, 400, 130899, 11230666, 347919225, 5158324560, 43174480650, 225086553300, 775894225050, 1831178115900, 3008073915000, 3439243962000, 2685727044000, 1366701336000, 408648240000, 54486432000]