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.
[164, 398, 491, -545, -257, -947, -659, 17, 648, -827, -113, 441, 646, -250, 548, 438, -1, 612, -65, 661, 297, 936, -18, -235, 134]