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.
[-17, -621, 549, 444, -12, 345, 406, 595, 451, 831, 390, 2, 207, 376, -83, 695, 948, 29, -486, -537, -660, -620]