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.
[337, -909, -564, -98, 981, 451, -458, 437, -351, 532, -492, 896, 356, -260, 309, -364, 637, -16]