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A220540 Equals one maps: number of 4Xn binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal, diagonal and antidiagonal neighbors in a random 0..1 4Xn array 0

%I #3 Dec 15 2012 20:07:50

%S 1,96,322,6620,42066,541829,4737799,50261056,476949627,4828330418,

%T 47120284988,469126471434,4617294604461

%N Equals one maps: number of 4Xn binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal, diagonal and antidiagonal neighbors in a random 0..1 4Xn array

%C Row 4 of A220537

%e Some solutions for n=3

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

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Dec 15 2012

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Last modified May 5 23:49 EDT 2024. Contains 372290 sequences. (Running on oeis4.)