4890528

Appears in sequences

• 1/3 the number of n X n 0..2 arrays with no element equal both to the element above and to the element to its left.at n=3A184687
• 1/3 the number of n X 4 0..2 arrays with no element equal both to the element above and to the element to its left.at n=3A184689
• T(n,k)=1/3 the number of nXk 0..2 arrays with no element equal both to the element above and to the element to its left.at n=24A184694