User blog comment:Googleaarex/Hexational Arrays and Beyond/@comment-5150073-20130603154150/@comment-5029411-20130603161323

(2),(2),(3),2(4) --> (2),(2),(3),(4) --> (2),(2),(((3)1)1) --> (2),(2),(X^X^X^X^3) --> (2),(E(X)2#X^X^X^X^3) --> (E(X)2#(E(X)2#X^X^X^X^3)).