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 A220318 Equals two maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to exactly two of their king-move neighbors in a random 0..2 nX4 array 0

%I

%S 4,89,3167,56819,984087,16290350,264901883

%N Equals two maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to exactly two of their king-move neighbors in a random 0..2 nX4 array

%C Column 4 of A220319

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 10 2012

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Last modified December 8 20:46 EST 2022. Contains 358698 sequences. (Running on oeis4.)