Question here: "https://ibb.co/g3VvCS"

import java.io.*;
import java.util.*;

public class Main {

    private static ArrayList  terms = new ArrayList<Integer>();

    private static ArrayList aT =new ArrayList<Integer>();
    private static ArrayList bT =new ArrayList<Integer>();
    private static ArrayList nT =new ArrayList<Integer>();

    public static void main(String[] args){
        String s="";
        Scanner in = new Scanner(System.in);
        /*
        * numbers of terms to be entered together.
        *
        * for eg: user input ->
        * 2
        *0 2 10
        *5 3 5
        *
        * */
        int t=in.nextInt();
        for(int i=0;i<t;i++){
            aT.add(in.nextInt());
            bT.add(in.nextInt());
            nT.add(in.nextInt());
        }
        in.close();

        for(int i=0;i<t;i++){

            calcSeries((int)aT.get(i),(int)bT.get(i),(int)nT.get(i));
            for(int o=0; o<terms.size();o++){
                System.out.printf("%d ",terms.get(o));
            }
            System.out.println(" ");
        }

    }

    private static void calcSeries(int a, int b ,int n){
        int temp;
        terms.clear();
        for(int i=0; i<n;i++){
            temp =0;
            for(int j=0; j<=i;j++){
                temp += Math.pow(2,j)*b;
            }
            terms.add(temp+a);
        }
    }
}