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A300611
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Number of nX7 0..1 arrays with every element equal to 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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1
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8, 981, 39330, 1387896, 48279880, 1693172810, 59556673490, 2093683166397, 73570793306416, 2585342220762941, 90853207535884062, 3192739038133777424, 112198275062067123972, 3942836730456260003891, 138557934963625655483146
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=5
..0..0..0..0..0..1..0. .0..0..0..0..1..0..1. .0..0..0..1..1..0..0
..0..1..1..0..1..0..1. .0..1..1..0..1..0..1. .0..1..1..0..0..1..0
..0..0..0..1..1..0..1. .0..0..0..0..1..0..1. .0..0..0..1..0..1..0
..0..1..0..0..0..0..1. .0..1..1..0..0..1..0. .0..1..0..1..1..0..0
..0..1..0..1..1..0..1. .0..0..1..1..0..1..0. .0..1..0..0..1..1..1
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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