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.
[492, -584, -690, -860, 716, 110, 684, -850, -290, 439, -111, 905, -823, 973, 623]