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A297985
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Number of nX7 0..1 arrays with every element equal to 0, 2, 3 or 6 king-move adjacent elements, with upper left element zero.
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1
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1, 94, 21, 79, 105, 242, 444, 935, 1835, 3921, 8793, 19694, 44948, 102048, 235955, 545484, 1264620, 2932659, 6807942, 15840667, 36867513, 85882218, 200113634, 466535260, 1088021475, 2538033638, 5921858545, 13819429210, 32254710106
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OFFSET
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1,2
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COMMENTS
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Column 7 of A297986.
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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=7
..0..1..0..1..1..0..0. .0..0..0..0..0..1..1. .0..0..1..1..1..1..1
..0..0..0..1..0..1..0. .0..1..1..1..1..0..1. .0..1..0..0..0..0..1
..0..1..0..1..0..1..0. .1..0..0..0..1..0..0. .0..1..1..1..1..1..0
..1..1..0..1..0..1..0. .0..1..1..0..1..0..1. .1..0..0..0..0..0..1
..1..0..0..1..0..1..0. .0..0..1..0..1..1..1. .0..1..1..1..1..1..0
..0..1..1..1..0..0..1. .1..0..1..0..1..0..1. .1..0..0..0..0..0..1
..0..0..0..0..1..1..1. .1..1..0..1..0..0..0. .1..1..1..1..1..1..1
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CROSSREFS
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Cf. A297986.
Sequence in context: A263517 A299827 A146551 * A298634 A033414 A218053
Adjacent sequences: A297982 A297983 A297984 * A297986 A297987 A297988
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, Jan 10 2018
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STATUS
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approved
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