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A298627
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Number of nX6 0..1 arrays with every element equal to 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.
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1
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0, 41, 611, 8617, 285085, 7087666, 193309200, 5247911837, 142315671147, 3877645294159, 105510015466842, 2873290228731054, 78240978697950981, 2130639664188207930, 58022611721225082405, 1580097104120035210877
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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..1..1..1..1. .0..0..0..0..0..1. .0..0..1..1..1..1. .0..1..1..1..1..1
..0..1..0..1..0..1. .0..0..0..0..1..1. .0..1..1..1..1..0. .0..0..1..0..1..1
..0..0..1..0..1..0. .0..0..1..0..1..1. .0..1..1..1..0..0. .0..0..0..0..0..0
..0..1..0..1..0..0. .1..1..0..1..1..0. .0..0..1..1..1..0. .0..1..1..1..1..0
..1..1..1..1..0..0. .1..1..0..0..0..0. .0..0..0..1..0..0. .1..1..1..1..1..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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