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A198603 Number of 2nX14 0..3 arrays with values 0..3 introduced in row major order and each element equal to exactly two horizontal and vertical neighbors 0

%I #4 Mar 31 2012 12:36:34

%S 122,125168,143724590,173328303620,212660032469362

%N Number of 2nX14 0..3 arrays with values 0..3 introduced in row major order and each element equal to exactly two horizontal and vertical neighbors

%C Column 7 of A198604

%e A solution for n=2

%e ..0..0..1..1..2..2..3..3..1..1..1..1..1..1

%e ..0..0..1..1..2..2..3..3..1..2..2..0..0..1

%e ..3..3..2..2..3..3..0..0..1..2..2..0..0..1

%e ..3..3..2..2..3..3..0..0..1..1..1..1..1..1

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 27 2011

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Last modified April 24 17:29 EDT 2024. Contains 371962 sequences. (Running on oeis4.)