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Number of nX6 0..4 arrays with each element equal to the number its horizontal and vertical neighbors unequal to itself
1

%I #5 Mar 31 2012 12:36:25

%S 2,14,44,70,93,214,410,998,2123,4591,11034,26330,60901,143300,345175,

%T 823118,1988085,4777597,11547151,28117721,68374283,166223266,

%U 405654362,991476600,2422998474,5926884201,14512749914,35554454454,87151183742

%N Number of nX6 0..4 arrays with each element equal to the number its horizontal and vertical neighbors unequal to itself

%C Column 6 of A195962

%H R. H. Hardin, <a href="/A195960/b195960.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for n=5

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

%e ..1..1..1..1..1..2....1..1..1..1..1..2....2..1..1..1..1..3....1..2..2..4..2..1

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

%e ..1..1..1..1..1..3....1..1..1..1..1..1....1..1..1..3..1..1....1..2..4..2..2..1

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Sep 25 2011