java pyramid with multiple of 2 not working

Question

I am suppose to create a pyramid and multiply each number by two until it reach the middle then divide by two such as shown in example below.

However after writing my code I am unable to have the numbers double (i*2) then once it reaches the center it divides by two until the it becomes 1

My output:

 package question5;

 public class Pyramid {

 public static void main(String[] args) {
    int x = 5;
    int rowCount = 1;

    System.out.println("Here Is Your Pyramid");

    //Implementing the logic

    for (int i = x; i > 0; i--)
    {
        //Printing i*2 spaces at the beginning of each row

        for (int j = 1; j <= i*2; j++)
        {
            System.out.print(" ");
        }

        //Printing j value where j value will be from 1 to rowCount

        for (int j = 1; j <= rowCount; j++)             
        {
        System.out.print(j+" ");
        }

        //Printing j value where j value will be from rowCount-1 to 1

        for (int j = rowCount-1; j >= 1; j--)
        {                    
        System.out.print(j+" ");             
        }                          

        System.out.println();

        //Incrementing the rowCount

        rowCount++;
    }
}
}

this is the weird output of it

Answer 1

This is working... You can use math.pow method.

public class test {

     public static void main(String[] args) {
        int x = 5;
        int rowCount = 1;

        System.out.println("Here Is Your Pyramid");
        //Implementing the logic

        for (int i = x; i > 0; i--)
        {
            //Printing i*2 spaces at the beginning of each row
            for (int j = 1; j <= i*2; j++)
            {
                System.out.print(" ");
            }

            //Printing j value where j value will be from 1 to rowCount

            for (int j = 0; j <= rowCount-1; j++)             
            {
            System.out.printf("%2d", (int)Math.pow(2, j));  
            }

            //Printing j value where j value will be from rowCount-1 to 1

            for (int j = rowCount-1; j >= 1; j--)
            {                    
            System.out.printf("%2d", (int)Math.pow(2, j-1));
            }                          

            System.out.println();

            //Incrementing the rowCount

            rowCount++;

        }
    }
    }