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.
[670, 360, 920, -406, -302, -877, -217, 345, 905, 37, 438, 336, 956, 810, -376, 394, -1, 625]