 Square number

A square number is an integer of the form $n^2$ for some integer $n$. Consecutive nonnegative squares differ by $(n+1{)}^2-n^2=2n+1$.

A square number, also known as a perfect square, is a number that can be expressed as the product of an integer multiplied by itself. In other words, a square number is the result of squaring an integer (raising it to the power of 2).