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A220937 Equals two maps: number of 3Xn binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..2 3Xn array 0

%I #3 Dec 25 2012 11:02:10

%S 1,12,92,673,5912,48212,395844,3232729,26184472,211363254

%N Equals two maps: number of 3Xn binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..2 3Xn array

%C Row 3 of A220935

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Dec 25 2012

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Last modified March 28 16:12 EDT 2024. Contains 371254 sequences. (Running on oeis4.)