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.
[-290, 314, 534, -642, -276, 563, 306, 637, 903, -967, -380, 932, 700, -731, -182, 936, -967, -449, 638, 21]