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A303257
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Number of 6Xn 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
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1
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0, 361, 5918, 55624, 1105676, 19457754, 322544617, 5622650429, 96079232228, 1646124445916, 28299650557400, 485285360460841, 8326738600567856, 142906680823826208, 2452047535254667099, 42076285291701652140
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OFFSET
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1,2
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COMMENTS
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Row 6 of A303254.
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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..1..1. .0..0..0..0..1. .0..0..0..0..0. .0..0..0..1..1
..1..0..0..1..1. .1..0..0..1..1. .0..0..1..1..0. .1..0..1..0..0
..0..1..0..1..0. .0..1..0..1..1. .0..0..0..1..1. .1..1..1..1..0
..0..1..0..0..0. .1..0..1..1..0. .0..0..0..1..1. .1..1..1..0..0
..0..0..1..0..0. .1..0..1..0..0. .0..0..0..1..1. .0..0..1..0..1
..0..1..0..1..0. .1..1..0..1..1. .1..1..0..1..1. .1..1..1..1..0
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CROSSREFS
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Cf. A303254.
Sequence in context: A302476 A231975 A112078 * A253675 A206249 A231996
Adjacent sequences: A303254 A303255 A303256 * A303258 A303259 A303260
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, Apr 20 2018
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STATUS
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approved
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