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 A220919 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..2 4Xn array 0

%I

%S 1,176,3299,61597,1017676,16524320,265639495,4258349242

%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..2 4Xn array

%C Row 4 of A220916

%e Some solutions for n=3

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

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Dec 24 2012

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Last modified May 26 13:59 EDT 2022. Contains 354092 sequences. (Running on oeis4.)