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A223414 4X4X4 triangular graph without horizontal edges coloring a rectangular array: number of nX7 0..9 arrays where 0..9 label nodes of a graph with edges 0,1 0,2 1,3 1,4 2,4 2,5 3,6 3,7 4,7 4,8 5,8 5,9 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph 1
3622, 1020056, 350374768, 120598735372, 42673331495196, 14904204066672312, 5291975389978126280, 1851730110138256970112, 657799493563984149404852, 230240262130769284239008388, 81795653409017262575416464812 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A223415
LINKS
EXAMPLE
Some solutions for n=3
..0..1..0..2..4..8..5....0..1..0..2..4..8..4....0..1..0..2..4..1..0
..1..0..2..5..2..5..2....1..0..1..4..2..5..2....1..0..1..4..7..3..1
..0..1..0..2..4..2..0....0..1..0..1..0..2..0....0..1..4..1..3..6..3
CROSSREFS
Sequence in context: A187745 A329539 A329540 * A046835 A143930 A341264
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 20 2013
STATUS
approved

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Last modified July 13 04:46 EDT 2024. Contains 374267 sequences. (Running on oeis4.)