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A304956
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Number of n X 5 0..1 arrays with every element unequal to 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
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1
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3, 120, 371, 2080, 11282, 60568, 334906, 1852576, 10208628, 56476986, 312311660, 1726835768, 9548532077, 52807525484, 292024665946, 1614879713366, 8930532980138, 49386528451002, 273109909878597, 1510322716604761
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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..0..1. .0..1..1..1..0. .0..1..0..0..1. .0..0..1..1..0
..0..1..1..0..0. .0..1..0..1..1. .1..1..0..0..0. .1..0..1..1..1
..1..1..1..1..0. .0..0..1..1..0. .1..0..0..1..1. .0..0..0..0..1
..0..1..0..0..1. .0..0..0..0..0. .1..0..1..0..1. .0..0..0..1..0
..0..0..0..1..1. .0..1..0..0..1. .0..1..1..0..0. .0..1..0..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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