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.
[-723, 9, 504, -613, -566, 338, 94, 880, 948, 63, -281, 229, 968, 787, 547, -421, 261]