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%I #6 Mar 31 2012 12:36:54
%S 4,4780,6829968,13106373164,28369308592126
%N Number of 6Xn 0..3 arrays with row sums equal and column sums unequal to adjacent columns
%C Row 6 of A203031
%e Some.solutions.for.n=5
%e ..2..2..3..1..2....1..3..2..0..3....3..1..1..0..3....3..2..2..1..2
%e ..3..2..3..2..0....1..3..1..2..2....0..2..3..3..0....2..3..0..2..3
%e ..0..1..3..3..3....1..3..2..0..3....0..2..2..1..3....2..2..2..1..3
%e ..1..2..3..1..3....0..2..1..3..3....2..1..2..1..2....0..1..3..3..3
%e ..1..2..3..3..1....2..1..3..2..1....0..0..2..3..3....2..0..3..3..2
%e ..2..2..3..0..3....0..1..2..3..3....0..1..2..2..3....3..2..1..2..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Dec 27 2011
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