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A223006 Number of nX2 0..1 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order 1

%I

%S 1,4,10,34,101,331,1044,3406,11008,36039,117866,387709,1276783,

%T 4217763,13954040,46258390,153562565,510523621,1699272620,5662498639,

%U 18888082230,63062936820,210730527620,704727803329,2358457291626,7898146040191

%N Number of nX2 0..1 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order

%C Column 2 of A223012

%H R. H. Hardin, <a href="/A223006/b223006.txt">Table of n, a(n) for n = 1..210</a>

%e All solutions for n=3

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Mar 11 2013

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Last modified January 21 00:46 EST 2022. Contains 350473 sequences. (Running on oeis4.)