




def       _SCREAMING_SNAKE_CASE      (							lowercase     :	int					):


      '''simple docstring'''



      assert isinstance(lowercase     ,							lowercase					), f"""The input value of [n={number}] is not an integer"""

      if number == 1:
            return 2
      elif number < 1:
            lowerCamelCase_							=   f"""The input value of [n={number}] has to be > 0"""
            raise ValueError(lowercase					)
      else:
            lowerCamelCase_							=   sylvester(number - 1					)
            lowerCamelCase_							=   num - 1
            lowerCamelCase_							=   num
            return lower * upper + 1


if __name__ == "__main__":
 print(F"""The 8th number in Sylvester's sequence: {sylvester(8)}""")









def       _SCREAMING_SNAKE_CASE      (							lowercase     :	str     ,							lowercase     :	int					):


      '''simple docstring'''



      return [sentence[i : i + ngram_size] for i in range(len(lowercase					) - ngram_size + 1					)]


if __name__ == "__main__":
 from doctest import testmod

 testmod()



