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.
[-337, 300, -52, 191, -150, -408, -243, 789, 401, 697, 824, 580, 239, 497, -630, 720, -333, 602, -511, -848, 467, 658]