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.
[459, 252, 491, -156, 767, -642, -937, -508, -625, -838, 794, 0, 622, 668, 859, 769, -659, -893, 524]