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.
[-691, 401, 188, 528, -308, 509, -729, 553, 439, -593, 775, 65, -133, 522, 670, 460]