Tethracubor-by-tethrathoth

The tethracubor-by-tethrathoth is equal to E100#^^###*#^^#100 using Extended Cascading-E Notation. The term was coined by Sbiis Saibian.
== Approximations in other notations ==
Notation 	Approximation
BEAF 	\(\{100,101(X \uparrow\uparrow\uparrow\uparrow X)(X \uparrow\uparrow X) 2\}\)Using particular notation \(\{a,b (X \uparrow\uparrow X) 2\}\) for \(X \uparrow\uparrow b\ \&\ a\) (weak bound)
\(\{100,101(X \uparrow\uparrow X^{3})(X \uparrow\uparrow X) 2\}\) (strong bound)
Bird's array notation 	\{100, 100 [1 \backslash 1 \backslash 1 \backslash 2] 1 [1 \backslash 2] 2\}
Fast-growing hierarchy
(using this system of fundamental sequences)	\(f_{{\varphi(3,0)} {\varepsilon_0}}(100)\) 
=f_{\eta_{0}\varepsilon_0}(100)
Hardy hierarchy 	\(H_{{\varphi(3,0)}^{\varepsilon_0}}(100)\)
=f_{\eta_{0}^{\varepsilon_0}}(100)
Slow-growing hierarchy	\(g_{\vartheta(\varphi(3,{\Omega 2}) (\varepsilon_{\Omega+1}))}(99)\)
== Sources ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Extended Cascading-E numbers
Category:Binary phi level
Category:Tethracubor regiment