Java 代码
import java.util.Scanner;
public class Main
{
public static void main (String[] args)
{
Scanner cin = new Scanner(System.in);
int n = cin.nextInt();
while (n > 0)
{
for (int i = 0; i < n; i ++)
{
for (int j = 0; j < n; j ++)
System.out.print(String.format("%.0f", Math.pow(2, i+j)) + " ");
System.out.print("\n");
}
System.out.print("\n");
n = cin.nextInt();
}
}
}