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A183580
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Half the number of nX5 0..3 arrays with each element equal to either the maximum or the minimum of its horizontal and vertical neighbors
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1
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14, 2216, 110674, 5987795, 320224986, 17195908538, 922710498351, 49526167251643, 2658141294593252, 142669482408162261, 7657427974138825496, 410994055177191194749, 22059119691987705997667, 1183970555622672309839445
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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 with a(1,1)<=1 for 3X5
..0..1..1..0..1....0..0..1..1..1....0..0..0..0..2....0..0..1..1..3
..0..0..0..0..1....0..1..0..0..1....0..0..0..3..2....2..0..1..1..3
..0..0..0..0..1....0..1..0..1..1....1..1..0..3..3....2..0..0..3..3
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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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