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.
[740, 993, 374, 473, 583, 255, -837, 785, -193, 289, 28, -418, 196, 606, 281, -367, 189, -388, 766, -440, -309, -448, -575, -485, 321]