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A316426
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Number of nX7 0..1 arrays with every element unequal to 0, 1, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.
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1
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21, 237, 311, 1660, 8761, 31433, 130402, 585212, 2366785, 9815061, 42205654, 175355823, 730455300, 3093042582, 12946456110, 54109637656, 227779656571, 955289842419, 4000305391990, 16801782691536, 70493554918254
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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..1..1..1..1..1. .0..0..1..0..0..1..0. .0..0..0..0..0..1..0
..0..1..1..1..1..1..1. .1..0..1..1..0..1..1. .0..0..0..0..0..0..0
..1..1..1..1..1..1..1. .1..1..1..1..1..1..1. .0..0..0..0..0..0..0
..1..1..1..1..1..1..1. .1..1..1..1..1..1..1. .0..1..0..0..0..0..0
..1..1..1..1..0..1..1. .0..1..1..1..1..1..0. .0..0..0..0..0..0..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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