input: Write a python function to find odd numbers in a range.
  assert odd_numbers(10) == [1, 3, 5, 7, 9]
  assert odd_numbers(15) == [1, 3, 5, 7, 9, 11, 13, 15]
  assert odd_numbers(5) == [1, 3, 5]
output: def odd_numbers(n):
      return [i for i in range(1, n + 1) if i % 2 != 0]