55063domain: NAppears in sequencesNumber of nX4 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically.at n=4A206867T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically.at n=32A206871Number of 5Xn 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically.at n=3A206874