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 A240655 Number of nX7 0..1 arrays with no element equal to exactly one horizontal or vertical neighbor, with new values 0..1 introduced in row major order 1

%I

%S 1,21,402,7154,118863,2076117,37066859,666849212,12062165754,

%T 218944306666,3980414427158,72424065007263,1318344476372801,

%U 24003514023779867,437093903871650760,7959828410582705257

%N Number of nX7 0..1 arrays with no element equal to exactly one horizontal or vertical neighbor, with new values 0..1 introduced in row major order

%C Column 7 of A240656

%H R. H. Hardin, <a href="/A240655/b240655.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_, Apr 09 2014

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Last modified September 25 12:57 EDT 2021. Contains 347654 sequences. (Running on oeis4.)