Find squares in Chessboard

How many squares , of any size, do not contain a Rook???

128.
1x1 Size : 62
2x2 Size : 41
3x3 Size : 18
4x4 Size : 06
5x5 Size : 1
So total of 62 + 41 + 18 + 6 + 1 = 128.