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A186607 Number of (n+4)X11 binary arrays with every 5X5 subblock commuting with each horizontal and vertical neighbor 5X5 subblock 1

%I #5 Mar 31 2012 12:36:06

%S 707955,38625,61336,98376,132040,176696,191232,193000,195032,198284,

%T 206372,229900,274644,326864,405664,549188,715968,905732,1152093,

%U 1428286,1777291,2173080,2636597,3208931,3889897,4787199,5898065,7266423,8989959

%N Number of (n+4)X11 binary arrays with every 5X5 subblock commuting with each horizontal and vertical neighbor 5X5 subblock

%C Column 7 of A186609

%H R. H. Hardin, <a href="/A186607/b186607.txt">Table of n, a(n) for n = 1..65</a>

%F Empirical: a(n)=a(n-1)+a(n-3)-a(n-4)+a(n-5)-a(n-6)-a(n-8)+a(n-9)+a(n-10)-a(n-13) for n>21

%e Some solutions for 6X11

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

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

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

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

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

%e ..0..0..1..1..0..0..0..0..0..0..0....1..0..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 April 25 10:22 EDT 2024. Contains 371967 sequences. (Running on oeis4.)