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.
[-510, 132, -579, -624, 882, 838, 964, -421, -487, -971, -787, 25, 888, -878, 20, 215, -620, 117, -611, -836, -449]