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A233732
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Number of (n+1)X(7+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6 and no adjacent elements equal
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1
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114820, 3435216, 118695412, 4696134192, 195088215888, 8382657501872, 365411698279744, 16077504208896432, 710340588106387612, 31469577641576479052, 1395852241413401555300, 61965217435895823239576
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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
..3..1..0..2..1..0..1..0....1..0..2..1..0..2..1..2....1..0..1..3..1..0..1..2
..1..0..2..1..3..1..3..2....0..2..1..3..2..1..3..1....3..2..0..1..0..2..3..1
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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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