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.
[351, -931, 138, 790, 688, -680, 712, 334, -91, 492, 59, 307, 379, -452, 133, 341, -851, 282, 132, -363, 454, 575]