The tetrahex is equal to \(\lbrace6,6,6,6\rbrace\) in BEAF or 4 & 6, using the array of operator.[1] The term was coined by Aarex Tiaokhiao.


The name of this number is based on tetra- (four) and hexa- (six), meaning that there are 4 6's in the array.

Approximations in other Notations Edit

Notation Approximation
X-Sequence Hyper-Exponential Notation \(6\{X^2\}6\)
Fast-growing hierarchy \(f_{\omega^2}(6)\)

Sources Edit

  1. Tiaokhiao, AarexAarex's Array Notation. Retrieved December 2013.

See also Edit

Tritri series: tritri · tritet · tripent · trisept · tridecal · grand tridecal
Tetratri series: tetratri · supertet · general(plex)
Pentatri series: pentatri · superpent · pentadecal(plex)
Hexatri series: hexatri · superhex · hexadecal(plex)
Heptatri series: heptatri · supersept · heptadecal
Iteral series: superoct · octadecal · superenn · ennadecal · iteral · ultatri
Dupertri series: dupertri · duperdecal · truperdecal · quadruperdecal
Latri series: latri · emperal(plex) · hyperal(plex) · admiral
Dutritri series: dutritri · dutridecal
Dimentri series: dimentri · dulatri · trilatri · trimentri
Triakulus series: triakulus · tridecatrix
Big boowa series: big boowa · great big boowa · grand boowa
Tiaokhiao's extensions: trihex · trioct · triennet · triundecal · tridodecal · tritriplex · tritriplexian · grand tritri · tetrapent · tetrahex · grand tetratri · octatri · enneatri · decatri · undecatri · dodecatri

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