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.
[-594, -352, 943, 621, -263, 756, -211, 184, 91, 460, -645, -109, 672, 259, -430, -521, -438, 113, 449]