static void Main(string[] args)
 {
     foreach (int k in Enumerable.Range(1, 5))
     {
         KPrime kprime = new KPrime() { K = k };
         Console.WriteLine("k = {0}: {1}",
             k, string.Join<int>(" ", kprime.GetFirstN(10)));
     }
 }
 static void Main(string[] args)
 {
     foreach (int k in Enumerable.Range(1, 5))
     {
         KPrime kprime = new KPrime()
         {
             K = k
         };
         Console.WriteLine("k = {0}: {1}",
                           k, string.Join <int>(" ", kprime.GetFirstN(10)));
     }
 }