A185483 - OEIS

%I #5 Mar 31 2012 12:36:01

%S 632,15402,260172,5026765,92026207,1723639416,31993561712,

%T 596127705496,11090335813888,206455498003433,3842337223051085,

%U 71517322707543044,1331091602445994492,24774933644949671704,461119872360212975722

%N Number of (n+1)X6 binary arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant

%C Column 5 of A185487

%H R. H. Hardin, <a href="/A185483/b185483.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for 3X6

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 28 2011