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.
[-116, -643, 798, 147, 524, 573, -587, 301, 293, -82, -306, 828, 994, 509, 68, -267, 821]