Figurate number that we can represent by a square or a sequence of interlocked squares.

The sequence of square numbers is: 1, 4, 9, 16, …

The sequence of square numbers is: 1, 4, 9, 16, …

*n*^{2}where*n*represents both the position of the term in the sequence and the number of points on the largest square in the figure.### Educational Note

- The number 0, which is the square of the whole number 0,
**is not a square number**. - The sequence of squares of whole numbers is : 0, 1, 4, 9, 16, …,
*n*² where*n*represents the whole number with position (*n*– 1).