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A202722 Number of (n+3)X7 binary arrays with no more than three of any consecutive four bits set in any row or column 1

%I #5 Mar 31 2012 12:36:50

%S 99003393,8918220179,798649122250,71167367871410,6316493287643944,

%T 562277092226375915,50035880671367204219,4451869056496085206106,

%U 396085241270480336084770,35242151010434808732906386

%N Number of (n+3)X7 binary arrays with no more than three of any consecutive four bits set in any row or column

%C Column 4 of A202726

%H R. H. Hardin, <a href="/A202722/b202722.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 23 2011

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Last modified April 20 09:53 EDT 2024. Contains 371802 sequences. (Running on oeis4.)