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.
[766, 878, -259, -540, 584, -431, -712, 977, 623, -911, 260, -939, -449, 526, 880, 201, -310, 17, 590]