This article is a stub. You can help Googology Wiki by expanding it. Username5243 is a googologist and Googology Wiki user. He is best known for Username5243's Array Notation., and is also an admin on Googology Wiki. Sources ↑ Username5243's large number site See also User:Username5243 Retrieved from "https://googology.wikia.org/wiki/Username5243?oldid=304800" Categories: Article stubs People Community content is available under CC-BY-SA unless otherwise noted.