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.
[-298, -471, -648, -972, -851, -293, -20, -834, 545, 387, -123, -439, -531, 359, 342, -506, 601, -330, -476, -624]