Tethrarxitet-carta-pentacthulhum

Tethrarxitet-carta-pentacthulhum is equal to E100#^^^#100#^^#^^#^^#100 in Extended Cascading-E Notation. The term was coined by Sbiis Saibian. This number belongs to the pentacthulhum regiment.
==Approximations==
Notation 	Approximation
Bird's array notation 	\(\{100,100 [1 [1 [1 [1 \backslash 2] 2 \neg 2] 2] 2 \neg 2] 2 [1 \backslash 2 \neg 2] 2\}\)
Fast-growing hierarchy (with gamma function)	\(f_{\Gamma_0+\varphi(\varphi(\varepsilon_0,0),0)}(100)\)
Hardy hierarchy 	\(H_{\Gamma_0 \omega^{\varphi(\varphi(\varepsilon_0,0),0)}}(100)\)
Slow-growing hierarchy 	???
==Sources==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Bachmann's collapsing level
Category:Pentacthulhum series
Category:Extended Cascading-E numbers