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%I #5 Mar 31 2012 12:36:04
%S 1304424,297562572,71683161894,17226840778164,4163686846399494,
%T 1006890732907711236,243566994040674992586,58923376595033869477548,
%U 14255041036793840265910500,3448666147857395420772494514
%N Number of (n+1)X7 0..2 arrays with no 2X2 subblock trace equal to any horizontal or vertical neighbor 2X2 subblock trace
%C Column 6 of A186141
%H R. H. Hardin, <a href="/A186138/b186138.txt">Table of n, a(n) for n = 1..200</a>
%e Some solutions for 3X7
%e ..0..0..0..1..0..2..0....0..0..0..0..0..1..2....0..0..0..1..1..1..2
%e ..0..0..1..0..1..0..0....0..0..2..1..2..0..2....0..0..1..0..2..0..2
%e ..0..1..0..0..0..2..0....0..1..0..2..0..2..2....0..1..0..0..0..2..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 13 2011