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A300928
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Number of nX6 0..1 arrays with every element equal to 1, 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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5, 450, 23404, 1155263, 57594572, 2875574552, 143498589629, 7160975085336, 357354070296570, 17833027051203085, 889920824531940198, 44409682947730021006, 2216174612863105824139, 110593672103195176997181
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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=5
..0..0..1..1..1..1. .0..0..0..0..0..0. .0..0..0..0..0..1. .0..0..0..0..0..0
..0..0..0..1..0..0. .0..0..1..1..0..0. .0..0..1..1..1..0. .0..0..1..1..0..0
..0..0..1..0..1..0. .0..0..0..0..1..1. .0..0..1..1..1..0. .0..0..1..0..1..1
..0..0..1..1..0..1. .0..0..1..0..0..0. .0..0..1..0..0..0. .0..0..1..1..1..1
..0..0..1..1..1..1. .0..0..1..0..0..0. .0..0..1..1..1..1. .0..0..0..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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