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.
[917, 607, 631, -212, 314, -116, -40, 365, -635, 173, 788, 88, 831, -476, 777, -317, 336]