The tethrigriditerator is equal to E100#^^#>##100 using Extended Cascading-E Notation.[1] The term was coined by Sbiis Saibian.


The name of this number comes from the infix "grid" and the number tethriterator.

Approximations in other notations

Notation Approximation
BEAF X^^(X^3) & 100
Bird's array notation ???
Fast-growing hierarchy \(f_{\varepsilon_{\omega^2} }(100)\)
Hardy hierarchy \(H_{\varepsilon_{\omega^2} }(100)\)
Slow-growing hierarchy ???


  1. Sbiis Saibian, Extended Cascading-E Numbers Part I - Large Numbers
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