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%I #5 Mar 31 2012 12:36:05
%S 2604716,104983,160945,342691,645937,841075,895753,1049539,1237105,
%T 1449115,1727305,2270035,3454177,4842475,6443497,8851603,12917665,
%U 18584859,25233881,34582531,49615377,70627083,96804489,133197363
%N Number of (n+3)X11 0..2 arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock
%C Column 8 of A186589
%H R. H. Hardin, <a href="/A186588/b186588.txt">Table of n, a(n) for n = 1..59</a>
%F Empirical: a(n)=2*a(n-1)-a(n-2)+2*a(n-4)-4*a(n-5)+2*a(n-6)+2*a(n-8)-2*a(n-9) for n>18
%e Some solutions for 5X11
%e ..0..0..0..0..0..0..0..0..0..2..1....0..0..0..0..0..0..0..0..0..0..0
%e ..0..0..0..0..0..0..0..0..0..1..0....0..0..0..0..0..0..0..0..0..0..1
%e ..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..1
%e ..1..0..0..0..0..0..0..0..0..0..0....2..0..0..0..0..0..0..0..0..0..0
%e ..2..0..1..0..0..0..0..0..0..0..0....0..1..0..0..0..0..0..0..0..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 24 2011
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