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Number of nX7 0..1 arrays with exactly floor(nX7/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order
1

%I #4 Feb 15 2013 06:51:54

%S 5,0,212,3307,15100,255304,2284728,37484794,318665044,5848569858,

%T 53774145449,993959061317,9141439223417,171115897853704,

%U 1590637978363140,29928907006839532,278649808319750564,5257935209592087820

%N Number of nX7 0..1 arrays with exactly floor(nX7/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order

%C Column 7 of A222328

%H R. H. Hardin, <a href="/A222327/b222327.txt">Table of n, a(n) for n = 1..34</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 15 2013