Tethrathothi-tritoth

The Tethrathothi-tritoth is equal to E100#^#^...#^#^#100 (103 #'s) = E100#^^#103 in extended Cascading-E notation. The term was coined by Sbiis Saibian. In Nested Cascading-E notation, this number is equal to E100#^^#^#103.