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.
[-704, -282, -767, 377, 931, -978, 387, -210, -289, -994, 945, 754, 156, -616, 977, -6, -404, -344, 148, 871, -594]