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A300425
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Number of nX6 0..1 arrays with every element equal to 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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1
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5, 307, 7179, 150352, 3175101, 67378450, 1429216222, 30305915964, 642539662326, 13623564881896, 288856192539481, 6124529242982786, 129856489597183370, 2753306188517066333, 58377486735843370680, 1237759521220895928270
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OFFSET
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1,1
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COMMENTS
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Column 6 of A300427.
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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..0..0..0..0..1. .0..0..0..0..1..0. .0..0..1..0..1..1. .0..0..0..1..0..0
..0..1..1..1..1..0. .0..1..0..1..1..0. .0..1..1..0..1..0. .0..1..0..1..1..1
..0..0..0..0..1..0. .0..1..1..0..1..0. .0..0..0..1..0..0. .0..1..0..0..1..0
..0..1..0..1..1..1. .0..1..0..1..0..0. .0..1..1..1..1..0. .0..1..0..1..0..1
..0..1..0..0..0..0. .0..0..0..1..1..0. .0..0..0..0..1..1. .0..0..1..0..1..1
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CROSSREFS
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Cf. A300427.
Sequence in context: A042763 A323012 A342210 * A300687 A300610 A301352
Adjacent sequences: A300422 A300423 A300424 * A300426 A300427 A300428
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, Mar 05 2018
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STATUS
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approved
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