Dutetrated-tethrennon

The dutetrated-tethrennon is equal to E100(#^^#^(9))^(#^^#^(9))100 in Extended Cascading-E Notation. The term was coined by Sbiis Saibian.
== Approximations in other notations ==
Notation 	Approximation
Bird's array notation 	\(\{100,100 [1 [1 [2 \neg 2] 2] 2 [2 \neg 2] 2] 2\}\)
Fast-growing hierarchy (using Veblen's fundamental sequences)	\(f_{\omega^{\omega^{\varphi(9,0)*2}}}(99)\)
Hardy hierarchy 	\(H_{\omega^{\omega^{\omega^{\varphi(9,0)*2}}}}(100)\)
==Sources==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Extended Cascading-E numbers
Category:Binary phi level