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 A210166 Number of (n+1)X(n+1) 0..3 arrays containing all values 0..3 with every 2X2 subblock having two or four distinct values, and new values 0..3 introduced in row major order 0
 1, 201, 89293, 101095392, 343737526300, 3748133016211929, 134623935213997208181, 16106430235512371314453933 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A210174 LINKS EXAMPLE Some solutions for n=4 ..0..1..1..1..0....0..0..1..0..1....0..0..0..1..1....0..0..0..0..1 ..0..0..1..0..1....1..0..0..0..1....1..1..0..0..0....0..1..0..1..0 ..0..1..0..1..1....2..3..3..0..0....0..1..0..1..0....2..3..2..3..2 ..1..0..0..0..0....2..2..2..1..0....0..0..1..0..0....2..2..2..2..3 ..1..0..2..0..3....3..2..0..3..2....2..0..1..0..3....0..0..0..0..1 CROSSREFS Sequence in context: A167070 A175188 A227152 * A216376 A166505 A066130 Adjacent sequences:  A210163 A210164 A210165 * A210167 A210168 A210169 KEYWORD nonn AUTHOR R. H. Hardin Mar 18 2012 STATUS approved

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