Pentacthul-pentacthulcross

is equal to E100#^^^#^#(E100#^^^##100) using Extended Cascading-E NotationSaibian, Sbiis. 4.3.10 - xec_numbers4. Accessed 2023-10-21.. This term was coined by Sbiis Saibian and is a member of the Pentacthultope regiment.
== Approximations in other notations ==
Notation 	Approximation
Bird's array notation 	\(\{100,\{100,100 [1 [1 \backslash 2 \neg 2] 1 \backslash 2] 2\} [1 [1 \backslash 2 \neg 2] 1 [2 \neg 2] 2]2\}\)
Fast-growing hierarchy	\(f_{\varphi(1,\omega,0)}(f_{\varphi(1,1,0)}(100))\)
== Sources ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Bachmann's collapsing level
Category:Extended Cascading-E numbers
Category:Pentacthultope series