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.
[-721, -291, 843, -652, 690, -69, -657, -826, -723, -363, 254, 635, -296, 799, 442, 247, -363, 435, 946]