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.
[-931, -268, -971, 172, -484, 323, -15, -564, 754, -474, -618, -430, -17, -18, -858, -263, 697, 637, -923, -551]