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A196728 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,1,4,0,3 for x=0,1,2,3,4 1
13, 890, 55431, 2810070, 155884161, 8480784814, 466328648058, 25627044432018, 1401061856163452, 76824706430678661, 4214277934317634634, 230987804774562016288, 12662004308972053192420, 694169878513382740535063 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Every 0 is next to 0 2's, every 1 is next to 1 1's, every 2 is next to 2 4's, every 3 is next to 3 0's, every 4 is next to 4 3's
Column 7 of A196729
LINKS
EXAMPLE
Some solutions for n=4
..0..0..1..0..1..1..0....0..0..0..1..1..0..0....0..0..0..1..1..0..0
..0..3..1..0..0..0..3....0..0..0..0..0..0..3....0..3..3..0..0..0..0
..0..0..0..3..0..0..0....0..0..0..3..1..0..0....0..0..0..0..0..3..1
..0..0..0..1..1..0..0....0..3..0..0..1..0..0....0..0..0..1..1..0..1
CROSSREFS
Sequence in context: A013539 A201255 A196695 * A197068 A337575 A274544
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 05 2011
STATUS
approved

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Last modified May 23 02:40 EDT 2024. Contains 372758 sequences. (Running on oeis4.)