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%I #5 Mar 31 2012 12:36:51
%S 2,22,140,838,5092,29680,183220,1061814,6630116,39048472,242647660,
%T 1438692856,8910239756,53090781836,327214611580,1954347351734,
%U 11998820896676,71771002591048,439163289580348,2629051988484048
%N Number of nX4 0..1 arrays with row sums equal and column sums unequal to adjacent columns
%C Column 4 of A202742
%H R. H. Hardin, <a href="/A202738/b202738.txt">Table of n, a(n) for n = 1..74</a>
%e Some solutions for n=5
%e ..0..1..1..0....1..0..1..0....0..1..0..1....1..1..0..0....1..1..0..0
%e ..0..0..1..1....0..0..1..1....1..0..1..0....0..1..1..0....1..0..0..1
%e ..0..1..0..1....1..0..1..0....0..1..1..0....0..1..1..0....1..0..0..1
%e ..0..1..0..1....1..0..1..0....0..1..1..0....1..0..0..1....1..0..1..0
%e ..1..0..0..1....0..1..0..1....0..0..1..1....1..1..0..0....0..1..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Dec 23 2011
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