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.
[629, -591, -325, -306, 154, -798, -206, -957, -864, 369, -476, 213, -36, 26, 541, 286, -140]