Hello...

I am not sure if this is the right section to put this in...but I have difficult solving this problem and I would appreciate any help you could provide!

--->In the cartesian place, consider the set of points A = [ (i,j) / 0 <=i, j<=40, with i and j are integers]. How many squares can be formed so that all the corners of a ll squares belong to A, with sides parallel to the x and y axes...

thanks for the help!