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A320407
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Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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1
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32, 257, 1970, 18725, 191615, 1957026, 19677729, 199877194, 2025592349, 20591906814, 209152278873, 2125269466703, 21596517936302, 219473499133689, 2230457205782323, 22667637795146693, 230368898318395100
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OFFSET
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1,1
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COMMENTS
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Column 6 of A320409.
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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..0..0..1..0..0. .0..1..0..1..1..1. .0..1..0..0..0..0
..0..0..0..0..0..0. .1..0..0..0..0..0. .0..0..0..1..0..1. .0..0..0..0..1..0
..1..0..0..0..0..0. .0..0..0..0..0..1. .0..0..0..0..1..0. .0..1..1..0..1..0
..0..1..1..0..1..1. .0..1..0..0..0..0. .0..0..0..0..0..0. .0..0..0..1..0..0
..0..0..0..0..1..1. .1..0..0..0..0..1. .0..1..0..0..0..0. .1..1..1..0..0..0
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CROSSREFS
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Cf. A320409.
Sequence in context: A357788 A022327 A318022 * A189651 A145711 A125369
Adjacent sequences: A320404 A320405 A320406 * A320408 A320409 A320410
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, Oct 12 2018
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STATUS
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approved
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