title: Recursion Tracing
body: <p>Lets assume I have a loop for Foo.</p>
  
  <pre><code>int Foo(int n)
  {
     if (n &lt;= 1)
        return 2;
     else
        return Foo(n-1) * Foo(n-2) * Foo (n-3);
  }
  </code></pre>
  
  <p>How many call will occur If i Call Foo(3) and what would be the result... </p>
  
  <p>Thanks</p>