Terrible terrible terrible tethriterator

Terrible terrible terrible tethriterator is equal to E100(((#^^>#)^^#)^^#)^^#100 using Extended Cascading-E Notation. The term was coined by Sbiis Saibian.
== Etymology ==
The name of this number comes from the prefix "terrible" and the number terrible terrible tethriterator.
== Approximations in other notations ==
Notation 	Approximation
BEAF 	???
Bird's array notation 	{100,100[1\4,2]2}
Fast-growing hierarchy	\(f_{\varepsilon_{\omega+3} }(100)\)
Hardy hierarchy 	\(H_{\varepsilon_{\omega+3} }(100)\)
Slow-growing hierarchy	???
== Sources ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Extended Cascading-E numbers
Category:Epsilon level