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.
[598, -566, 137, -104, -357, -948, 109, -578, -889, -788, -363, 672, -30, 385, 409]