User blog comment:Googleaarex/My number is bigger! (Googology Wiki version)/@comment-24509095-20140921170054/@comment-25371339-20140921182435

Omega Function:

Omega(0) = 0

Omega(1) = F(1) (in your F notation)

Omega(2) = R(R(2))

etc.

My number is Omega(Omega(Omega(...(Omega(Omega(Googolplex)))...))) w/ Googolplex Levels