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A298257
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Number of nX6 0..1 arrays with every element equal to 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero.
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1
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0, 13, 7, 72, 238, 895, 3335, 13980, 55889, 230402, 953813, 3957108, 16359243, 67815820, 280896101, 1164014899, 4823739307, 19992787735, 82860456229, 343442251791, 1423487855696, 5900154785814, 24455403244104, 101365322534618
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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=8
..0..0..1..1..1..1. .0..0..0..0..1..1. .0..0..1..1..1..1. .0..0..1..1..0..0
..0..1..0..0..0..1. .0..1..1..0..0..1. .0..1..1..0..0..1. .0..1..1..0..1..0
..1..0..1..1..1..0. .1..0..1..1..1..0. .0..1..0..1..1..0. .1..0..0..0..1..0
..1..1..0..0..0..1. .1..0..0..0..0..1. .0..1..0..0..1..0. .1..1..1..1..0..0
..1..0..1..1..0..1. .0..1..1..1..0..1. .0..1..1..0..1..0. .0..0..0..0..1..0
..1..0..0..1..0..1. .0..0..1..0..1..1. .0..0..1..0..1..0. .0..1..1..1..1..0
..0..1..1..1..1..0. .1..1..0..1..1..0. .1..0..1..0..1..0. .1..0..0..0..0..1
..0..0..0..0..0..0. .1..0..0..0..0..0. .1..1..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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