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A183595 1/6 the number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock containing all three values 0

%I

%S 6,204,17174,3831324,2220901926,3366668183708,13330538464876654,

%T 137936054886331468840,3729575155642883493035294

%N 1/6 the number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock containing all three values

%C Diagonal of A183603

%e Some solutions with a(1,1)=0 for 3X3

%e ..0..0..0....0..2..1....0..1..0....0..2..0....0..2..0....0..2..0....0..0..1

%e ..1..2..1....2..1..0....2..0..2....1..0..1....1..1..1....2..1..2....1..2..1

%e ..0..0..0....0..1..2....1..1..1....2..2..1....2..0..2....1..0..2....2..0..2

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 05 2011

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Last modified February 4 07:13 EST 2023. Contains 360046 sequences. (Running on oeis4.)