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A186588 Number of (n+3)X11 0..2 arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock 1

%I

%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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Last modified August 15 23:32 EDT 2022. Contains 356150 sequences. (Running on oeis4.)