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A186557 Number of (n+1)X5 0..3 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors 4

%I #5 Mar 31 2012 12:36:05

%S 927477,783375343,663296784123,561714653720250,475681559860717916,

%T 402827283017904807331,341131017852900112413067,

%U 288884064380556803805427879,244639147969972250796140260427

%N Number of (n+1)X5 0..3 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors

%C Column 4 of A186558

%H R. H. Hardin, <a href="/A186557/b186557.txt">Table of n, a(n) for n = 1..13</a>

%e Some solutions for 3X5

%e ..0..0..0..0..1....0..0..0..2..3....2..0..3..2..3....2..0..3..2..1

%e ..2..0..2..0..0....2..0..2..0..3....2..0..2..0..3....2..0..2..3..2

%e ..0..0..2..1..2....0..0..1..0..3....0..0..2..2..1....0..0..1..3..3

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 23 2011

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Last modified May 9 10:59 EDT 2024. Contains 372350 sequences. (Running on oeis4.)