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.
[-521, 929, -574, -82, 75, -690, -507, 390, 744, 615, -518, 649, 673, 52, -854, -490]