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.
[-308, 636, -42, 890, 456, -696, -537, 40, -826, -713, -314, -314, 270, -631, -758, -468, 912, -259]