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.
[-406, 887, -543, 990, 311, 955, -664, -537, -333, 615, 735, 729, -916, -88, 263, 909, 834, -273]