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A186960 1/729 the number of (n+2)X9 0..2 arrays with each 3X3 subblock trace equal to some horizontal or vertical neighbor 3X3 subblock trace 0

%I #4 Mar 31 2012 12:36:07

%S 40300479,85776954369,81727735220193,96133158385481199,

%T 108124495560461502429

%N 1/729 the number of (n+2)X9 0..2 arrays with each 3X3 subblock trace equal to some horizontal or vertical neighbor 3X3 subblock trace

%C Column 7 of A186962

%e Some solutions for 4X9

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 01 2011

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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)