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 A210175 Number of (n+1)X(n+1) 0..3 arrays containing all values 0..3 with every 2X2 subblock having three or four distinct values, and new values 0..3 introduced in row major order 0
 1, 2316, 7363642, 178967377396, 35812805301833530, 59168572185919156908468, 807064033391082670768444038930, 90885346773699848616006199051130800984 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A210183 LINKS EXAMPLE Some solutions for n=4 ..0..0..0..0..0....0..0..1..0..2....0..1..0..0..0....0..0..1..0..2 ..1..2..1..2..3....1..2..2..1..1....0..2..1..3..2....1..2..2..0..1 ..2..3..3..2..0....0..3..0..0..2....3..1..3..2..0....1..3..1..3..2 ..0..0..1..2..3....2..1..1..2..3....1..0..0..0..1....2..3..2..3..0 ..2..3..0..2..1....1..0..2..0..2....3..1..2..3..0....0..0..3..1..3 CROSSREFS Sequence in context: A132214 A133538 A075668 * A137733 A205636 A347569 Adjacent sequences:  A210172 A210173 A210174 * A210176 A210177 A210178 KEYWORD nonn AUTHOR R. H. Hardin Mar 18 2012 STATUS approved

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Last modified May 17 23:07 EDT 2022. Contains 353779 sequences. (Running on oeis4.)