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

%I #4 Feb 23 2013 17:08:42

%S 5,44,441,8489,81537,1802656,19892241,473772613,5455705052,

%T 132847734428,1556509083100,38249750511090,451888833065131,

%U 11163258877769638,132555800154675325,3286688523503328223,39169490256183059057

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

%C Column 7 of A222509

%H R. H. Hardin, <a href="/A222508/b222508.txt">Table of n, a(n) for n = 1..30</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 23 2013