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.
[42, 176, -433, 92, 5, -149, 439, 180, -559, 809, -236, -704, 251, -315, -182, -482, 154, 679, -847, 511]