import java.io.*;
class SquareSeries
{
    public static void main(String args[]) throws IOException
    {
        int n;
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        System.out.println(\"Enter no.of elements in series: \");
        n = Integer.parseInt(br.readLine());

        if(n>0)
        {
            System.out.println(\"Series:\");
            for(int i=0; i<(n-1); i++)
            {
                System.out.println(\"\\t\"+(int)(Math.pow(i,2)));
            }
        }

        else
            System.out.println(\"You Entered the Wrong no.\");

    }
}

 

OUTPUT: 

Enter no.of elements in series:
6
Series:
    0
    1
    4
    9
    16
    25