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A205756 Number of 5X(n+1) 0..2 arrays with every 2X2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..2 introduced in row major order.

%I A205756 #7 Jul 22 2025 19:00:58
%S A205756 2268,12384,63838,383290,2244622,14131118,88143754,572187838,
%T A205756 3709029086,24613160072,163670433374,1104155427184,7473775678826,
%U A205756 51060113489722,350078262846120,2415378206667070,16720104940755442,116264115349570420
%N A205756 Number of 5X(n+1) 0..2 arrays with every 2X2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..2 introduced in row major order.
%C A205756 Row 4 of A205753
%H A205756 R. H. Hardin, <a href="/A205756/b205756.txt">Table of n, a(n) for n = 1..210</a>
%e A205756 Some solutions for n=4
%e A205756 ..0..0..1..0..2....0..0..1..2..0....0..0..1..0..1....0..1..0..1..0
%e A205756 ..2..0..0..0..2....1..0..1..2..2....1..1..1..1..1....0..0..0..0..0
%e A205756 ..2..1..2..1..2....1..2..1..0..1....1..1..1..1..1....0..0..0..0..0
%e A205756 ..1..2..1..0..1....0..1..2..1..2....1..2..1..2..1....1..0..2..0..1
%e A205756 ..2..2..1..1..1....2..1..0..0..2....2..1..0..1..0....2..0..1..0..2
%K A205756 nonn
%O A205756 1,1
%A A205756 _R. H. Hardin_ Jan 30 2012