Tethrideciculator is equal to E100#^^#>#^#10 using Extended Cascading-E Notation.[1] The term was coined by Sbiis Saibian.


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

Approximations in other notations

Notation Approximation
BEAF X^^(X^11) & 100
Bird's array notation ???
Fast-growing hierarchy \(f_{\varepsilon_{\omega^{10}}}(100)\)
Hardy hierarchy \(H_{\varepsilon_{\omega^{10}}}(100)\)
Slow-growing hierarchy ???


  1. Saibian, Sbiis. 4.3.7 Extended Cascading-E Numbers Part IOne to Infinity. Retrieved 2017-01-02.
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