%I #4 Mar 31 2012 12:36:57
%S 3,256,25002,3065704,421158558,61706303456,9532999874792
%N Number of 5Xn 0..2 arrays with row sums equal and column sums unequal to adjacent columns
%C Row 5 of A203491
%e Some solutions for n=5
%e ..1..1..2..0..1....1..0..0..0..0....0..2..2..2..1....1..2..2..1..0
%e ..2..1..2..0..0....1..0..0..0..0....0..1..2..2..2....0..1..1..2..2
%e ..0..2..2..0..1....1..0..0..0..0....2..2..2..0..1....1..2..2..0..1
%e ..1..0..1..1..2....0..0..0..0..1....0..1..2..2..2....1..1..1..1..2
%e ..2..0..1..2..0....0..0..1..0..0....0..2..2..1..2....0..1..2..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 02 2012
|