A338143 - cp's OEIS frontend

A338143 Triangle read by rows: T(n,k) is the number of unoriented colorings of the edges of a regular n-D orthotope (or ridges of a regular n-D orthoplex) using exactly k colors. Row n has n*2^(n-1) columns.

n	a(n)
1	1
2	1
3	4
4	6
5	3
6	1
7	142
8	11682
9	310536
10	3460725
11	19870590
12	65886660
13	133585200
14	168399000
15	128898000
16	54885600
17	9979200
18	1
19	11251320
20	4825713121719
21	48019143606137456
22	60392840368910627325

[1, 1, 4, 6, 3, 1, 142, 11682, 310536, 3460725, 19870590, 65886660, 133585200, 168399000, 128898000, 54885600, 9979200, 1, 11251320, 4825713121719, 48019143606137456, 60392840368910627325]

cp's OEIS Frontend

A338143 Triangle read by rows: T(n,k) is the number of unoriented colorings of the edges of a regular n-D orthotope (or ridges of a regular n-D orthoplex) using exactly k colors. Row n has n*2^(n-1) columns.

Table of values

List of values