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A233948
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Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 4
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1
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780718, 144797048, 27781166008, 5586328225626, 1138816865389902, 234320529225491746, 48397283414008033460, 10019368734553550702208, 2076288413340940926824150, 430539542797104173397070614
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=1
..2..0..2..0..0..1..1..2....2..1..2..2..0..0..0..0....0..0..0..0..1..0..0..0
..0..0..0..0..2..2..0..0....0..0..0..2..2..1..2..2....0..2..2..2..1..2..2..2
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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