1566319

Appears in sequences

• Number of zero-sum n X 4 -1..1 arrays with every element equal to at least one horizontal or vertical neighbor.at n=4A201843
• Number of zero-sum nX5 -1..1 arrays with every element equal to at least one horizontal or vertical neighbor.at n=3A201844
• T(n,k)=Number of zero-sum nXk -1..1 arrays with every element equal to at least one horizontal or vertical neighbor.at n=31A201847
• T(n,k)=Number of zero-sum nXk -1..1 arrays with every element equal to at least one horizontal or vertical neighbor.at n=32A201847