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A223303 4X4X4 triangular graph coloring a rectangular array: number of nX6 0..9 arrays where 0..9 label nodes of a graph with edges 0,1 0,2 1,2 1,3 1,4 2,4 3,4 2,5 4,5 3,6 3,7 4,7 6,7 4,8 5,8 7,8 5,9 8,9 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph 1
9216, 2918052, 1148040516, 470062209228, 195984333263964, 82235766550254744, 34624128327772135980, 14597586270725996512680, 6158981902609383720107172, 2599381915639470430301409024, 1097252078673262192056218956776 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A223305

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=3

..0..1..0..1..4..8....0..1..0..2..4..7....0..1..4..1..3..1....0..1..4..1..3..1

..1..0..1..0..1..4....1..0..1..4..1..3....1..0..1..2..1..0....1..0..1..2..1..3

..0..1..2..1..4..2....0..1..3..7..3..1....0..1..2..1..3..1....0..1..0..1..4..1

CROSSREFS

Sequence in context: A175743 A204103 A209595 * A031594 A262508 A272596

Adjacent sequences:  A223300 A223301 A223302 * A223304 A223305 A223306

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 19 2013

STATUS

approved

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Last modified March 30 12:10 EDT 2020. Contains 333125 sequences. (Running on oeis4.)