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.
[621, 364, 576, 954, -774, -781, -351, 305, 798, 635, -643, -869, 427, 113, -447, 187, -113, 824, 866, -630, 253, -992, -698, 462, 484]