Horrible pentacthulcross

Horrible pentacthulcross is equal to E100(#^^^##)^^^#100 using Extended Cascading-E notation. The term was coined by Sbiis Saibian.Large Numbers - 4.3.9 - xec_numbers3 (Retrieved 1 May 2022)
== Approximations ==
Notation 	Approximation
Bird's array notation 	\(\{100,100 [1 [1 \backslash 2 \neg 2] 2 \backslash 2] 2\}\)
Fast-growing hierarchy	\(f_{\Gamma_{\beta_0+1}}(100)\)
Hardy hierarchy 	\(H_{\Gamma_{\varphi(1,1,0)+1}}(100)\)
Slow-growing hierarchy	???
== References ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Extended Cascading-E numbers
Category:Bachmann's collapsing level