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A185749 Number of (n+1)X9 binary arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace 1

%I

%S 7528,1494072,148782184,16318664224,1793861476320,197100662468008,

%T 21671299631697840,2382038434840423712,261857186889698585032,

%U 28785387230187042741928,3164343356615626181734896

%N Number of (n+1)X9 binary arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace

%C Column 8 of A185750

%H R. H. Hardin, <a href="/A185749/b185749.txt">Table of n, a(n) for n = 1..50</a>

%e Some solutions for 3X9

%e ..0..1..1..1..0..0..1..1..0....0..1..1..1..0..1..1..0..1

%e ..0..1..1..1..0..0..0..1..1....0..1..1..1..1..1..1..1..1

%e ..0..1..0..0..0..1..1..1..0....0..1..0..0..0..0..0..0..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 01 2011

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Last modified June 28 07:25 EDT 2022. Contains 354903 sequences. (Running on oeis4.)