SymPy Gamma

Input:

summation%28%281%2Fn%29*x**n%2C %28n%2C 1%2C oo%29%29

Error:

summation%28%281%2Fn%29*x**n%2C %28n%2C 1%2C oo%29%29

unsupported operand type(s) for %: 'function' and 'Integer'

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