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A305279
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Number of nX6 0..1 arrays with every element unequal to 0, 2, 3, 4 or 8 king-move adjacent elements, with upper left element zero.
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1
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1, 272, 256, 2130, 5060, 26577, 96739, 437098, 1790654, 7846313, 33489668, 146020567, 632928299, 2759573954, 12031721087, 52517794501, 229550541255, 1003154198402, 4390141774803, 19203048654511, 84095708519850
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OFFSET
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1,2
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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..1..0..1..0. .0..0..0..0..1..1. .0..0..0..1..1..0. .0..0..1..0..1..0
..1..0..0..1..1..1. .1..1..1..0..0..0. .1..1..1..0..0..1. .1..1..0..0..0..1
..1..0..0..1..1..0. .0..1..1..1..0..1. .1..1..1..0..0..1. .1..1..0..0..0..1
..1..0..0..1..1..0. .0..0..1..1..1..0. .1..1..1..0..0..1. .1..1..0..0..0..1
..0..1..0..0..1..0. .1..0..0..1..0..1. .0..0..0..1..0..1. .1..1..0..1..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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