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 A236047 Number of (n+1)X(n+1) 0..2 arrays colored with the difference of the maximum and minimum in each 2X2 subblock 0
 81, 1068, 12686, 92392, 773442, 5604400, 44834198, 289134368, 2222640774, 14296163080, 109103294482, 686921984208, 5195005028738, 32919630237968, 247864648460478, 1570367863370880 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A236055 LINKS EXAMPLE Some solutions for n=4 ..1..1..0..1..2....2..0..0..2..1....2..0..0..1..1....0..2..2..1..0 ..1..2..1..0..0....0..1..1..2..2....2..1..1..2..2....1..2..1..0..1 ..0..1..2..1..0....0..1..1..2..2....1..1..1..2..2....2..1..0..1..2 ..0..0..1..1..2....2..1..0..1..2....1..1..0..1..2....0..1..1..2..2 ..2..1..0..2..1....2..2..0..0..2....1..2..0..0..0....0..1..1..2..2 CROSSREFS Sequence in context: A237159 A183807 A264203 * A264000 A236781 A237059 Adjacent sequences:  A236044 A236045 A236046 * A236048 A236049 A236050 KEYWORD nonn AUTHOR R. H. Hardin, Jan 18 2014 STATUS approved

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Last modified September 25 12:23 EDT 2020. Contains 337343 sequences. (Running on oeis4.)