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Number of nX6 0..2 arrays with exactly floor(nX6/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order
1

%I #4 Feb 28 2013 07:15:09

%S 8,80,1336,20606,426362,9334575,244592240,6696876400,189469189930,

%T 5486076619642,160969581159830,4753772105875149,140756030057698872,

%U 4174584083484598931,123964025120779460314,3684029351402136756157

%N Number of nX6 0..2 arrays with exactly floor(nX6/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order

%C Column 6 of A222673

%H R. H. Hardin, <a href="/A222671/b222671.txt">Table of n, a(n) for n = 1..34</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 28 2013