Icosa-endekaxis

Icosa-endekaxis is equal to \(10\uparrow^{10}20\) or 10 doedecated to 20. This term was coined by YouTuber MultiArrest91.MultiArrest91, Numbers Tridecal to Googontritol Accessed 2021-05-27.
==Approximations==
Notation 	Approximation
Hyper-E notation 	\(E1\#1\#1\#1\#1\#1\#1\#1\#1\#20\)
BEAF 	\(\{10,20,10\}\) (exact)
Bird's array notation 	\(\{10,20,10\}\) (exact)
Fast-growing hierarchy	\(f_{11}(20)\) (exact)
==Sources==
==See also==
Category:Numbers
Category:Up-arrow notation level
Category:Videos