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%I #5 Mar 31 2012 12:36:57
%S 3,10,80,556,3348,20596,134412,888232,5836068,38457456,255381636,
%T 1704162724,11399565860,76433483528,513785171540,3461284463632,
%U 23360156262164,157908381404144,1068981156413892,7246198178206132
%N Number of 2Xn 0..2 arrays with row sums equal and column sums unequal to adjacent columns
%C Row 2 of A203491
%H R. H. Hardin, <a href="/A203492/b203492.txt">Table of n, a(n) for n = 1..97</a>
%e Some solutions for n=5
%e ..0..2..0..2..2....1..0..1..2..0....2..1..0..2..1....1..1..1..2..1
%e ..0..1..2..2..1....2..0..2..0..0....2..2..1..1..0....1..2..1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 02 2012
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