login
Half the number of n X n binary arrays with no element unequal to a strict majority of its king-move neighbors
0

%I #6 Dec 18 2015 18:17:28

%S 1,1,1,4,21,148,2376,48868,1730057,102043638,9184967738,1385925975119

%N Half the number of n X n binary arrays with no element unequal to a strict majority of its king-move neighbors

%C Diagonal of A183391

%e Some solutions with a(1,1)=0 for 8X8

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

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

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

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

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

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

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

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

%K nonn

%O 1,4

%A _R. H. Hardin_ Jan 04 2011