In this task you will be given a list of integers. You should only return an integer if the first digit is the same as the last digit in the number. If an integer has a single digit, then it should be returned. If there are no integers that start and end with the same digit then an empty list ("[]") should be returned.
[-536, -713, 674, -793, 759, -309, 75, -677, -460, -872, 526, -691, -847, 447, -50, -604, 603, 178, -721]