[3,9,9,27,9,27,27,81,9,27,27,81,27,81,81,243,9,27,27,81,27,81,81,243,27,81,81,243,81,243,243,729,9,27,27,81,27,81,81,243,27,81,81,243,81,243,243,729,27,81,81,243,81,243,243,729,81,243,243,729,243,729]