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Number of (n+2)X8 binary arrays with each 3X3 subblock singular
1

%I #5 Mar 31 2012 12:36:04

%S 2588842,240280270,21790214094,1642063770394,137706977983060,

%T 11449128594687024,936496872238986044,77511953226639748246,

%U 6406893092233533908442,528930411882010842895740

%N Number of (n+2)X8 binary arrays with each 3X3 subblock singular

%C Column 6 of A186052

%H R. H. Hardin, <a href="/A186049/b186049.txt">Table of n, a(n) for n = 1..48</a>

%e Some solutions for 4X8

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 11 2011