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A300028
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Number of n X 6 0..1 arrays with every element equal to 0, 1, 3, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
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1
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13, 73, 59, 518, 4320, 18775, 153289, 1162345, 7133776, 54979586, 402166114, 2748707739, 20339364130, 147487006730, 1043506098401, 7599112187024, 54923304977846, 393412536966095, 2847592555411713, 20556758995325968
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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..1..1..0..0. .0..0..1..1..0..0. .0..1..1..0..1..0. .0..1..0..1..0..0
..1..0..1..1..1..1. .1..1..1..1..0..0. .1..1..1..0..1..0. .1..0..0..0..0..0
..1..1..1..1..0..0. .1..1..1..1..1..0. .1..1..1..1..1..1. .0..0..0..0..0..1
..1..1..1..1..1..1. .1..0..1..1..0..0. .0..0..1..1..1..1. .0..0..1..0..0..0
..0..0..1..1..0..0. .1..0..1..1..0..0. .1..1..1..1..0..0. .1..0..0..1..0..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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