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.
[-511, 294, -358, 531, -278, 865, -189, -232, 993, 452, -414, -40, -727, 342, -928, -443, -133, 116, 528, -633]