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A220332 Equals two maps: number of 5Xn binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..1 5Xn array 0

%I #3 Dec 10 2012 18:15:46

%S 1,114,2788,76627,2065264,59893608,1653121774

%N Equals two maps: number of 5Xn binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..1 5Xn array

%C Row 5 of A220328

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Dec 10 2012

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Last modified February 23 17:29 EST 2024. Contains 370283 sequences. (Running on oeis4.)