Ento-tethrathoth

Ento-tethrathoth is equal to E100(#^^#)^#9 using Extended Cascading-E Notation. The term was coined by Sbiis Saibian. This number belongs to the Tethrathoth regiment.
==Approximations in other notations==
Notation 	Approximation
Hyperfactorial array notation 	\(100![1,1,9,1,2]\)
X-Sequence Hyper-Exponential Notation	\(100\{(X\uparrow\uparrow X)^{9}\}100\)
Fast-growing hierarchy 	\(f_{\varepsilon_0^9}(100)\) = \(f_{\omega^{\varepsilon_0 \times 9}}(100)\)
Hardy hierarchy 	\(H_{\varepsilon_0^{\varepsilon_0^9}}(100)\) = \(H_{\omega^{\omega^{\varepsilon_0 \times 9}}}(100)\)
Slow-growing hierarchy 	\(g_{\vartheta(\varepsilon_{\Omega2}^9\varepsilon_{\Omega+1})}(100)\)
== Sources ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Extended Cascading-E numbers
Category:Epsilon level