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ThaAwesome's Tetratri[1] is a number created by Googology user ThaAwesome. it is equal to 3[3,3]3 in ThaAwesome's Array Notation. As is explained in ThaAwesome's Array Notation#Issues, the notation is ill-defined, and hence the number is ill-defined. It is intended to be equal to 3{tritriplexian}3.

Approximations in other notations[]

Since the number is ill-defined, we just list approximation of an intended value.

Notation Approximation
Bowers' Exploding Array Function 3{3{3{3↑↑↑3}3}3}3 (exact)
Chained arrow notation 3→3→4→2
Fast-growing hierarchy \(f_{\omega+1}(4)\)

Sources[]

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