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A300645
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Number of nX7 0..1 arrays with every element equal to 2, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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1
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0, 41, 340, 9738, 268615, 7455411, 209156119, 5850560104, 164070075524, 4598093771759, 128918622840447, 3614049889811873, 101322289968443168, 2840562813679842551, 79635815085572716192, 2232600346263905624578
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=5
..0..0..0..1..0..0..0. .0..0..0..0..0..1..1. .0..0..1..1..1..1..1
..0..0..1..1..0..0..1. .0..1..1..0..1..1..0. .0..0..1..0..0..0..1
..0..0..1..1..1..1..1. .0..1..1..0..1..0..0. .0..0..1..0..0..1..1
..0..0..1..1..0..0..1. .0..1..0..0..1..0..0. .0..0..1..0..0..1..0
..0..0..1..0..0..1..1. .0..0..0..1..1..0..0. .0..1..1..1..1..0..0
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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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