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%I #4 Dec 01 2014 19:31:44
%S 397000,12022920,486098916,27005232676,1921884757552,159630812543048,
%T 14450351430729220,1370689197849454348,133364903363727279712,
%U 13158366374644613586752,1308299260415520510948444
%N Number of (n+1)X(6+1) 0..3 arrays with every 2X2 subblock summing to a nonzero multiple of 3
%C Column 6 of A251343
%H R. H. Hardin, <a href="/A251341/b251341.txt">Table of n, a(n) for n = 1..52</a>
%e Some solutions for n=1
%e ..0..2..0..2..1..1..1....0..2..1..0..1..3..2....2..0..3..3..2..3..0
%e ..1..3..1..0..3..1..0....1..0..0..2..0..2..2....1..3..3..0..1..3..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 01 2014
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