8856576domain: NAppears in sequencesOne quarter the number of nX6 1..4 arrays with no two neighbors of any element equal to each other.at n=10A183358Number of nX5 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 0 1 1 vertically.at n=13A207120