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.
[-290, -335, -621, 945, 105, -77, 115, 303, -688, -357, 158, 196, 629, -553, -624, -46, 24, 512, -988]