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.
[-970, -205, 953, 324, 632, 365, -461, -180, -637, 554, 101, -365, -91, -384, -159, -502, -537, 533, 231]