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.
[34, 137, 681, 866, 88, 767, 197, 216, -312, 234, -874, -911, 147, -913, 667, -177, -475, 698, -507, -300, 664]