input: Write a function to generate and display a Fibonacci sequence of the first n numbers. The function should take an integer n as input and print the Fibonacci numbers from the first to the nth. If n is less than 1, the function should print an empty sequence.
  def Fibonacci_sequence(n):
      def Fibonacci(n):
          if n==1:
              return 0
          elif n==2:
              return 1
          else:
              return Fibonacci(n-1)+Fibonacci(n-2)
      if n < 1:
          print()
      else:
          for i in range(1, n+1):
              print(Fibonacci(i))
  
  assert Fibonacci_sequence(5) == None
  assert Fibonacci_sequence(0) == None
  assert Fibonacci_sequence(1) == None
output: def Fibonacci_sequence(n):
      def Fibonacci(n):
          if n==1:
              return 0
          elif n==2:
              return 1
          else:
              return Fibonacci(n-1)+Fibonacci(n-2)
      if n < 1:
          print()
      else:
          for i in range(1, n+1):
              print(Fibonacci(i))