F#: InvalidOperationException: The input sequence has an insufficient number of elements? -

I have functions that return the order of records, in that function, I started building a list with empty dummy record I'm (probably a better way of doing this) because I need to submit records, so I have a blank record with "Pump the Pump" here my code is:

  Integrate ( Somethings: seq & lt; some & gt;) = ineffectual results = resizeArray () accumulates volatile Some = {Foo = ""; Bar = ""; For socks = 0;} do anything, if s.Foo = something stored. Foo & amp; S.Bar = Accumulated something. Some of the later & lt; - {Foo = s.Foo; Bar = s.Bar; Calculation = s.Count + Accumulated something. Calculation} and results. Add (some cached) accumulated something & lt; - e Results | & Gt; Seq.cast | & Gt; Seq.skip 1 If you have a way to make this better, then I am all ears (I am still thinking methodically), but I can answer this specific question. I still take interest in Later in my code, I try to print the list:  
  somethings | & Gt; Seq.iter (fun -> gt; printfn "% A" s)   
 It works fine when it comes to the list, but if the list is empty and the only record blank starter in the list Is recorded, then this line fails with the message  invalid operation exception  with the message  is an inadequate number in the input order element?   
 Why does this happen and how can I fix it?   
 
 
 The problem occurs when  somethings  is an empty list.  
 In this case,  the result  is empty and calling  Seq.skip 1  
  
  
 I think an elegant solution  
  will change the match result to the last line. 0 - & gt; Results | & Gt; Seq.cast | _ - & gt; Results | & Gt; Seq.cast | & Gt; Seq.skip 1