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A196639
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Number of nX6 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, 65, 780, 10708, 154629, 2166536, 30213746, 423781213, 5929501986, 83127041136, 1164232610323, 16309719386435, 228474526845154, 3200565487849560, 44835398622377697, 628080583294667526, 8798521636340417779
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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 6 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..0..2..2....0..0..0..0..0..0....0..0..0..0..3..0....0..0..0..0..3..0
..0..0..0..3..2..2....0..3..0..3..0..3....0..3..3..0..0..0....3..0..3..0..0..0
..0..0..0..0..3..0....0..3..0..3..0..0....0..0..0..0..0..3....0..2..2..0..0..0
..0..0..3..0..0..0....0..0..0..0..3..0....0..0..3..0..3..0....0..2..2..0..3..0
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CROSSREFS
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Sequence in context: A116277 A220389 A196634 * A008516 A000540 A023875
Adjacent sequences: A196636 A196637 A196638 * A196640 A196641 A196642
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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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