print pyramid pattern in java. Example 2

If you want print pattern like given below:
1
2 6
3 7 10
4 8 11 13
5 9 12 14 15

//program to print pyramid pattern 

package pattern_progrm;

public class Pattern_progrm {

    public static void main(String[] args) {

        int i,j;

        int sum ;

        for(i=1;i<=5;i++){

            sum=i;

            for(j=1;j<=i;j++){ 

                System.out.print(" "+sum);

                sum+=5-j;

            }

            System.out.println();

        }

}

output: