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.
[320, -631, -439, 827, -168, -689, -379, 781, 168, -663, -67, 278, -819, -568, 535, 781]