Pentacthulcross

Pentacthulcross is equal to E100#^^^##100 = E100#^^^#>#^^^#>...>#^^^#>#^^^#100 (with 100 #^^^#'s) in Extended Cascading-E Notation. The term was coined by Sbiis Saibian.
== Etymology ==
The name of this number is based on the number pentacthulhum and the root "cross", meaning a 2-dimensional figure.
== Approximations in other notations ==
Notation 	Approximation
BEAF (intended) (climbing method) 	\(X\uparrow\uparrow\uparrow X^{2} \& 100\)
Bird's array notation 	\(\{100,100[1[1 \neg 3]1 \backslash 2]2\}\) (Nested Hyper-Nested Array Notation)
\(\{100,100 [1 [1 \backslash 2 \neg 2] 1 \backslash 2] 2\}\) (Hierarchial Hyper-Nested Array Notation)
Hyperfactorial array notation 	\(100![1(1)1,1,2,2]\)
Fast-growing hierarchy (with this system of fundamental sequences)	\(f_{\varphi(1,1,0)}(100)\)
Slow-growing hierarchy 	\(g_{\vartheta(\Omega_2+\vartheta_1(\Omega_2+1))}(100)\)
== Sources ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Extended Cascading-E numbers
Category:Bachmann's collapsing level
Category:Pentacthulcross series