Bi-Troifyn is a number equal to 23(76) using Revised Pehan Notation.[1] The term was coined by Licorneuhh.

It is also equal to 2276(76) = 2275(Bi-Deufyn)


Notation Approximation
BEAF \(\{76,76,3,3\}\)
Chained arrow notation \(76\rightarrow 76\rightarrow 76\rightarrow 76\rightarrow 4\)
Hyperfactorial array notation 76![4,2]
Fast-growing hierarchy \(f_{\omega2+3}(76)\)
Hardy hierarchy \(H_{\omega^{\omega2+3}}(76)\)
Slow-growing hierarchy (using this system of fundamental sequences) \(g_{\varphi(2,2,0)}(77)\)


  1. Fyn Group | Licorneuhh's numbers site (retrieved at UTC 14:14 09/01/2021)
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