





'''simple docstring'''
def 				lowercase__   (   __lowercase						:  int     ) ->      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:
              __UpperCamelCase       =  F'''The input value of [n={number}] has to be > 0'''
              raise ValueError(__lowercase     )
       else:
              __UpperCamelCase       =  sylvester(number - 1     )
              __UpperCamelCase       =  num - 1
              __UpperCamelCase       =  num
              return lower * upper + 1


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



from ..utils import DummyObject, requires_backends





class 	snake_case_   (		metaclass=__A					):







			'''simple docstring'''

			SCREAMING_SNAKE_CASE     :   Union[str, Any]									=				["note_seq"]







			def __init__(     self :				Optional[int]							,   *_UpperCamelCase :				str							,   **_UpperCamelCase :				Optional[int]							)      ->Any:
									requires_backends(self							,   ['''note_seq''']							)







			@classmethod
			def 				snake_case__(     cls :				int							,   *_UpperCamelCase :				Any							,   **_UpperCamelCase :				List[Any]							)      ->int:
									requires_backends(cls							,   ['''note_seq''']							)







			@classmethod
			def 				snake_case__(     cls :				Dict							,   *_UpperCamelCase :				Optional[int]							,   **_UpperCamelCase :				Union[str, Any]							)      ->List[str]:
									requires_backends(cls							,   ['''note_seq''']							)