title: How to insert value in a IEnumerable<int>?
body: <p>I have this :</p>
  
  <pre><code>IEnumerable&lt;int&gt; intYear = Enumerable.Empty&lt;int&gt;();
  </code></pre>
  
  <p>how can I insert some values? I Don't see any intYear.Add() method.</p>
  
  <p>Like 2010, 2011, and so on...</p>