A223251 - cp's OEIS frontend

A223251 Two-loop graph coloring a rectangular array: number of n X 4 0..4 arrays where 0..4 label nodes of a graph with edges 0,1 1,2 2,0 0,3 3,4 4,0 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph.

n	a(n)
1	80
2	1076
3	17828
4	307144
5	5359892
6	93770308
7	1641741608
8	28748561780
9	503440061060
10	8816254627208
11	154390919319636
12	2703707386173764
13	47347570829880040
14	829155025056272692
15	14520239405020681988

[80, 1076, 17828, 307144, 5359892, 93770308, 1641741608, 28748561780, 503440061060, 8816254627208, 154390919319636, 2703707386173764, 47347570829880040, 829155025056272692, 14520239405020681988]

cp's OEIS Frontend

A223251 Two-loop graph coloring a rectangular array: number of n X 4 0..4 arrays where 0..4 label nodes of a graph with edges 0,1 1,2 2,0 0,3 3,4 4,0 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph.

Table of values

List of values