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A302876
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Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
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1
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21, 363, 722, 5871, 41498, 359518, 3780984, 44888558, 569313013, 7621363641, 104570444900, 1454457203293, 20411212109809, 287723152198003, 4065886450724385, 57544773261064748, 815093693449992494
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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..1..0..0..0..1..0. .0..1..1..1..1..1..1. .0..1..1..1..0..1..1
..1..1..0..1..1..1..0. .1..0..1..1..0..0..1. .1..1..1..1..1..0..1
..0..1..0..1..0..1..0. .1..0..1..0..1..0..1. .1..1..1..0..0..0..0
..0..0..0..1..0..1..0. .1..0..1..0..1..0..1. .0..1..0..0..0..0..1
..1..1..0..1..1..0..0. .1..0..0..0..1..1..1. .1..0..0..0..0..1..0
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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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