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A196640
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Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 1,4,2,0,3 for x=0,1,2,3,4
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1
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1, 161, 2716, 61040, 1359317, 30213746, 665532327, 14699136810, 324580294214, 7174373488843, 158475010595627, 3501133164138965, 77351575703021875, 1708953141696773382, 37756465985372614724, 834167580535337854517
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OFFSET
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1,2
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COMMENTS
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Every 0 is next to 0 1's, every 1 is next to 1 4's, every 2 is next to 2 2's, every 3 is next to 3 0's, every 4 is next to 4 3's
Column 7 of A196641
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..200
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EXAMPLE
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Some solutions for n=4
..0..0..0..3..0..0..0....0..0..3..0..3..0..0....0..0..0..3..0..0..0
..2..2..0..0..0..0..3....3..0..0..0..0..3..0....3..0..0..0..0..0..0
..2..2..0..3..2..2..0....0..0..2..2..0..2..2....0..0..0..0..3..3..0
..0..0..3..0..2..2..0....0..0..2..2..0..2..2....0..3..0..0..0..0..0
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CROSSREFS
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Sequence in context: A200869 A200883 A196635 * A197089 A135699 A092312
Adjacent sequences: A196637 A196638 A196639 * A196641 A196642 A196643
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin Oct 04 2011
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STATUS
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approved
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