418876

Appears in sequences

• Number of n X n 0..1 arrays avoiding 0 0 0 horizontally and 0 1 1 vertically.at n=4A206930
• Number of nX5 0..1 arrays avoiding 0 0 0 horizontally and 0 1 1 vertically.at n=4A206933
• T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 horizontally and 0 1 1 vertically.at n=40A206936
• Number of 5Xn 0..1 arrays avoiding 0 0 0 horizontally and 0 1 1 vertically.at n=4A206938