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 A209959 Number of (n+1)X8 0..2 arrays with every 2X2 subblock having one, three or four distinct clockwise edge differences 1
 18289737, 54603359537, 161711349015585, 479493044479186433, 1421470275154962255801, 4214142277487028096606145, 12493316536665519357482808705, 37037944370044063974355915754673 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 7 of A209960 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=4 ..2..0..1..2..0..2..1..0....2..2..1..2..2..2..1..0....0..2..2..1..0..2..2..0 ..2..1..1..1..2..2..1..2....0..1..1..1..0..1..1..0....1..2..0..0..2..2..0..0 ..0..2..2..2..0..0..2..2....2..2..0..0..0..1..0..2....0..2..1..0..2..2..0..2 ..2..1..1..2..0..2..2..0....1..1..1..2..0..2..2..1....2..1..1..1..1..0..0..1 ..2..2..0..2..2..1..2..1....1..1..0..2..1..1..1..1....2..2..0..0..1..0..1..1 CROSSREFS Sequence in context: A073032 A222977 A203884 * A140171 A185854 A073033 Adjacent sequences:  A209956 A209957 A209958 * A209960 A209961 A209962 KEYWORD nonn AUTHOR R. H. Hardin Mar 16 2012 STATUS approved

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