CUBE and calculating the number of dimensions

if a data presented with 4-dimension in which each dimension is dependent to hierarchical 3-level aggregate like (country, city, street), then we can summarize it into 4096 ways! > we know for cube with n dimension in which none of dimension is > hierarchical we have 2^n summarizing ways, but in this case that each > dimension has hierarchical 3-level aggregate have 4^4=256 ways. Why does the above statement mention that there are 4096 ways? if I couldn't state my problem very well because of a flaw in my English usage, please see: > This is my formula, however my answer is very different from 4096!