Guppyduplex

The guppyduplex is equal to 10101020 = E20#3 = EEE20 using Hyper-E notation. The name was coined by Sbiis Saibian. It is equal to 1 followed by a guppyplex zeroes. It is 101020+1 digits long.
== Approximations in other notations ==
Notation 	Lower bound 	Upper bound
Arrow notation 	\(10\uparrow10\uparrow10\uparrow20\) 	\(10\uparrow10\uparrow10\uparrow20\)
Down-arrow notation 	\(10\downarrow\downarrow\downarrow4\) 	\(10\downarrow\downarrow\downarrow5\)
Steinhaus-Moser Notation 	15[3][3][3] 	16[3][3][3]
Copy notation 	9[9[9[20]]] 	1[1[1[21]]]
H* function 	H(33H(33H(5))) 	H(34H(34H(5)))
Taro's multivariable Ackermann function	A(3,A(3,A(3,65))) 	A(3,A(3,A(3,66)))
BEAF 	{10,{10,{10,20}}} 	{10,{10,{10,20}}}
Bashicu matrix system 	(0)(0)(1)[8] 	(0)(0)(1)[9]
Bird's array notation 	{10,{10,{10,20}}} 	{10,{10,{10,20}}}
Hyperfactorial array notation 	((20!)!)! 	((21!)!)!
Strong array notation 	s(10,s(10,s(10,20))) 	s(10,s(10,s(10,20)))
Fast-growing hierarchy 	\(f_{2}^3(62)\) 	\(f_{2}^3(63)\)
Hardy hierarchy 	\(H_{\omega^23}(62)\) 	\(H_{\omega^22}(63)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^{\omega^{\omega2}}}}(10)\)	\(g_{\omega^{\omega^{\omega^{\omega2}}}}(10)\)
== Sources ==
== See also ==
Category:Numbers
Category:Class 4
Category:Numbers by Sbiis Saibian
Category:Hyper-E numbers
Category:Googol series
Category:Animal-based name