Primero

package nuroimpar;
import java.io.*;
/**
 *
 * @author Administrador
 */
public class Main {
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args)throws IOException {
        int impar=1;
        for (int i=0;i<51;i++)
        {
    System.out.println(impar);
        impar=impar+2;
        }
}
}