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 A210301 Number of (n+1)X(n+1) 0..3 arrays containing all values 0..3 with every 2X2 subblock having one or three distinct values, and new values 0..3 introduced in row major order 0
 0, 1091, 1575467, 11061291451, 437971830335043, 98959142504758664603, 127648944948853198818703027, 940014634185937826679488616180507 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A210309 LINKS EXAMPLE Some solutions for n=4 ..0..0..0..0..1....0..0..0..0..1....0..1..0..0..0....0..1..0..0..0 ..2..1..3..1..2....2..3..1..2..0....0..2..1..3..2....0..2..0..0..0 ..1..3..2..2..0....2..0..0..1..2....1..1..3..0..3....3..2..3..1..2 ..2..2..1..3..0....3..2..1..2..3....2..3..0..1..0....1..1..2..1..3 ..1..3..2..2..2....1..1..3..1..2....2..1..3..3..0....0..2..0..1..2 CROSSREFS Sequence in context: A161118 A031711 A253216 * A043597 A043837 A043849 Adjacent sequences:  A210298 A210299 A210300 * A210302 A210303 A210304 KEYWORD nonn AUTHOR R. H. Hardin Mar 19 2012 STATUS approved

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Last modified January 21 03:58 EST 2022. Contains 350473 sequences. (Running on oeis4.)