public static void main(String[] args) {
        int [] b = new int[]{1};
        Test t =  new Test();
        t.fun(b,9);
    }

    private void fun(int[] b, int count) {
        int[] a ;
        if(count ==0 )
            return;
        if(count != 1){
            for(int i =0;i<count-1;i++){
                System.out.print(" ");
            }
        }
        for(int i =0;i<b.length;i++){
            System.out.print(b[i] + " ");
        }
        System.out.println();
        if(b.length ==1){
            a = new int[]{1,1};
        } else {
            a = new int[b.length +1];
            a[0] = 1;
            for(int i = 1;i<b.length;i++){
                a[i] = b[i-1]+b[i];
            }
            a[b.length] =1;
        }
        b = null;
        fun(a,count-1);
    }