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A304765
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Number of nX6 0..1 arrays with every element unequal to 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
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1
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0, 209, 3680, 172574, 6978743, 292676592, 12219307955, 510976436144, 21366609684109, 893510784279365, 37365335846465488, 1562572262518146095, 65344912903528854346, 2732647907508684527299, 114276155295332420501253
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OFFSET
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1,2
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COMMENTS
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Column 6 of A304767.
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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..1..0..0. .0..1..1..1..0..1. .0..1..0..1..1..0. .0..1..0..1..0..0
..0..1..1..1..1..1. .0..1..0..0..0..0. .0..1..0..1..1..0. .0..1..0..0..1..1
..0..1..1..0..1..0. .0..1..0..0..1..1. .0..1..0..0..1..0. .0..1..0..1..0..1
..0..1..0..0..1..0. .0..1..0..0..1..1. .0..1..0..0..1..0. .0..1..1..1..0..0
..0..1..0..1..0..1. .0..1..0..1..0..0. .0..1..1..1..1..0. .0..1..0..1..1..1
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CROSSREFS
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Cf. A304767.
Sequence in context: A235512 A203040 A250951 * A316509 A317463 A029554
Adjacent sequences: A304762 A304763 A304764 * A304766 A304767 A304768
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, May 18 2018
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STATUS
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approved
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