ag-gipp/GoUldI

Syntax::tsntxi: 
   "RowBox[{RowBox[{F     , , 
                     n + 1
         RowBox[{  ∑  , TemplateBox[{n - k, k}, Binomial]}]}], ,, n ≥ 0}]"
                 k ≤ n
     is incomplete; more input is needed.

ToExpression::esntx: 
   Could not parse F_{n+1}=\sum_{k\leq n}\binom{n-k}{k},\quad n\geq 0
     as input.

<math 
  xmlns='http://www.w3.org/1998/Math/MathML'>
  <semantics>
    <mi>$Failed</mi>
    <annotation-xml encoding='MathML-Content'>
      <ci>$Failed</ci>
    </annotation-xml>
  </semantics>
</math>