170409

Appears in sequences

• Number of nX4 0..1 arrays avoiding 0 0 0 horizontally and 0 1 1 vertically.at n=5A206932
• T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 horizontally and 0 1 1 vertically.at n=41A206936
• Number of 6Xn 0..1 arrays avoiding 0 0 0 horizontally and 0 1 1 vertically.at n=3A206939