Tethrennon-by-deuteron

Tethrennon-by-deuteron is equal to E100(#^^#^9)100(#^^#^9)100 in Extended Cascading-E Notation. The term was coined by Sbiis Saibian.
== Approximations in other notations ==
Notation 	Approximation
Bird's array notation 	\(\{100,100 [1 [2 \neg 2] 2] 3\}\)
Fast-growing hierarchy	\(f_{\varphi(9,0)\times 2}(99)\)
Hardy hierarchy 	\(H_{\omega^{\varphi(9,0)\times 2}}(100)\)
==Sources==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Extended Cascading-E numbers
Category:Binary phi level