127570

Appears in sequences

• 1/6 the number of nX3 0..5 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors.at n=3A185536
• 1/6 the number of nX4 0..5 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors.at n=2A185537
• T(n,k)=1/6 the number of nXk 0..5 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors.at n=17A185540
• T(n,k)=1/6 the number of nXk 0..5 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors.at n=18A185540
• Total number of elements (with multiplicity) in all subsets of [n] having a square element sum.at n=18A377572