User blog comment:MachineGunSuper/Question/@comment-32213734-20180225032808/@comment-34812936-20180225073627

Graham's number is {3,3,{3,3,...,{3,3,4}}...} with 128 3's in new BEAF.

Also, any power of number is expressible in new BEAF (and any number in old BEAF).