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A186058 Number of (n+2)X6 binary arrays with each 3X3 subblock having a positive determinant 1

%I

%S 2328,18376,128303,836891,5877960,40407070,275207345,1895454019,

%T 13007169394,89136850704,612015399430,4198884666511,28801139319651,

%U 197648603598770,1355993974788845,9302424752127932,63831781852560836

%N Number of (n+2)X6 binary arrays with each 3X3 subblock having a positive determinant

%C Column 4 of A186063

%H R. H. Hardin, <a href="/A186058/b186058.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for 4X6

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 11 2011

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Last modified June 27 19:31 EDT 2022. Contains 354898 sequences. (Running on oeis4.)