216466

Appears in sequences

• Number of nX3 0..n+3-2 arrays with each element differing from its horizontal and vertical neighbors by one or two.at n=3A265453
• Number of nX4 0..n+4-2 arrays with each element differing from its horizontal and vertical neighbors by one or two.at n=2A265454
• T(n,k)=Number of nXk 0..n+k-2 arrays with each element differing from its horizontal and vertical neighbors by one or two.at n=17A265458
• T(n,k)=Number of nXk 0..n+k-2 arrays with each element differing from its horizontal and vertical neighbors by one or two.at n=18A265458