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.
[476, -1, -607, 13, 105, -756, -645, 807, 397, -175, 626, 229, 264, 878, -725, 356, 440, -291, 208, 507, 159, -706, -531]