∫ The area of quadrilateral ABFE is12; Then take the midpoint g and h of EF and CD respectively, and the area of quadrilateral EGHD is122; Then take the midpoint of GH and FC respectively and take it down in turn.
The area of square ABCD is 1,
∴ The area of square ABCD minus the area of the last remaining square is equal to the value of formula12+122+123+…+122012.