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A183396 Half the number of nX5 binary arrays with no element equal to a strict majority of its knight-move neighbors 1

%I #5 Mar 31 2012 12:35:51

%S 16,8,227,451,2145,17689,115241,776298,5449079,38642644,277752173,

%T 1909030362,13267161854,93179287100,656936455439,4611955119108,

%U 32182148791367,225610241471253,1583383795892313,11105116240158063

%N Half the number of nX5 binary arrays with no element equal to a strict majority of its knight-move neighbors

%C Column 5 of A183397

%H R. H. Hardin, <a href="/A183396/b183396.txt">Table of n, a(n) for n = 1..25</a>

%e Some solutions with a(1,1)=0 for 7X5

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 04 2011

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Last modified April 24 17:20 EDT 2024. Contains 371962 sequences. (Running on oeis4.)