Definition: 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.
Input: [804, 836, -833, 954, 155, 445, -255, 748, -106, -826, -332, 590, 340, 53, 372, 646, -318, 121, 457, -725, -181]

[646, 121, -181]