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A305173
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Number of nX6 0..1 arrays with every element unequal to 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
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1
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0, 209, 543, 13970, 218476, 2549718, 40793823, 587542013, 8317497391, 122410918154, 1769703359532, 25611323679926, 372124817557660, 5393189658763700, 78206120530424501, 1134400785272299908
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OFFSET
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1,2
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COMMENTS
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Column 6 of A305175.
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..210
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EXAMPLE
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Some solutions for n=5
..0..1..0..0..1..1. .0..1..1..0..1..0. .0..1..0..1..1..0. .0..1..1..0..0..1
..0..1..1..1..0..0. .0..1..1..0..1..1. .1..0..0..0..1..1. .0..1..0..0..1..0
..0..1..1..1..1..1. .1..0..1..1..1..0. .0..1..0..1..0..0. .1..0..1..0..0..1
..1..1..0..0..1..0. .0..1..1..1..0..1. .1..0..0..0..0..1. .0..0..0..1..0..1
..0..1..1..1..1..0. .1..0..0..1..0..1. .0..1..1..0..1..0. .1..1..0..0..1..0
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CROSSREFS
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Cf. A305175.
Sequence in context: A305507 A211672 A250780 * A316761 A260011 A203048
Adjacent sequences: A305170 A305171 A305172 * A305174 A305175 A305176
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, May 26 2018
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STATUS
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approved
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