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A223018 Number of 7Xn 0..1 arrays with no more than floor(7Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order 1

%I #4 Mar 11 2013 13:48:52

%S 64,1044,14040,360347,4804753,145478406,2073830655,66509093374,

%T 985479740720,32475865653768,492376017743531,16475005198528111,

%U 253520938675980217,8564078592723045087,133132956579249054833

%N Number of 7Xn 0..1 arrays with no more than floor(7Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order

%C Row 7 of A223012

%H R. H. Hardin, <a href="/A223018/b223018.txt">Table of n, a(n) for n = 1..27</a>

%e Some solutions for n=3

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 11 2013

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)