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.
[-256, -569, -449, 618, -257, -320, -645, 151, -729, 902, -922, 120, 446, -731, 103, -550]