Quatrice-tethrasecunda

Quatrice-tethrasecunda is equal to E100(((#^^##)^^##)^^##)^^##100 using Extended Cascading-E Notation. The term was coined by Sbiis Saibian.
== Approximations in other notations ==
Notation 	Approximation
BEAF 	X^^^4X & 100
Bird's array notation 	\(\{100,100[1\backslash1\backslash5]2\}\)
Fast-growing hierarchy 	\(f_{\zeta_3}(100)\)
Hardy hierarchy 	\(H_{\zeta_3}(101)\)
Slow-growing hierarchy (with this system of fundamental sequences)	\(g_{\psi_0(\Omega_2^2 4)}(100)\)
== Sources ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Extended Cascading-E numbers
Category:Binary phi level
Category:Tethrasecunda