Treegol

Treegol is equal to \(\{10,10,10,100,4\}\) in BEAF. The term was coined by Chris Bird.
Username5243 calls this number Tetrumegoogol (formerly Tetrugigoogol), and it's equal to \(10[0,0,4]100\) in Username5243's Array Notation.
== Etymology ==
The name of this number is based on Latin prefix "tri-" and the number "geegol".
== Approximations ==
Notation 	Approximation
Bird's array notation 	\(\{10,10,10,100,4\}\) (exactly equal)
Hyper-E notation 	\(\textrm E100\#\#\#100\#\#\#100\#\#\#100\#\#\#100\)
Chained arrow notation 	\(100 \rightarrow_5 100\)
Fast-growing hierarchy 	\(f_{(\omega^2) 4}(100)\)
Hardy hierarchy 	\(H_{\omega^{(\omega^2) 4}}(100)\)
Slow-growing hierarchy (with this system of fundamental sequences)	\(g_{\varphi(3,\omega,\omega,0)}(100)\)
== Sources ==
== See also ==
Category:Numbers
Category:Numbers by Jonathan Bowers
Category:5+ linear
Category:Googol series
Category:BEAF
Category:Quadratic omega level
Category:Linear series
Category:Troogol series