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Half the number of (n+1)X8 binary arrays with no 2X2 subblock containing exactly one 1
1

%I #5 Mar 31 2012 12:35:57

%S 6048,490546,35741495,2708892872,203828058160,15380031974284,

%T 1159953545419800,87501032165288029,6600426667881339225,

%U 497894721865502792366,37557974910650911070498,2833135360759134027255303

%N Half the number of (n+1)X8 binary arrays with no 2X2 subblock containing exactly one 1

%C Column 7 of A184197

%H R. H. Hardin, <a href="/A184195/b184195.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for 3X8

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 10 2011