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Not to be confused with chainol.

Choinol is equal to s(3,2,2,1,1,2) = s(3,3,3,3,s(3,3,3,3)) in strong array notation.[1]

Approximations

Notation Approximation
BEAF {3,3,3,3,{3,3,3,3}}
Bird's array notation {3,3,3,3,{3,3,3,3}}
Hyper-E notation \(\textrm{E}2\#\#\#\#(\textrm{E}(3)3\#\#\#3)\)
Hyperfactorial array notation \((4!2)![1,1,3]\)
Fast-growing hierarchy \(f_{\omega^3+1}(2)\)
Hardy hierarchy \(H_{\omega^{\omega^3}+\omega}(2)\)
Slow-growing hierarchy \(g_{\varphi(\varphi(2,2,0),0,0,0)}(3)\)

Sources

See also

Hyp cos' linear strong array notation numbers | exAN numbers
3-entry series
Tribo group: tribo · tetbo · pentbo · hexabo
Trientri group: trientri · tettro · pentro · hextro
Trientet group: triteto · trientet · penteto · hexteto
Trienpent group: tripeno · tetpeno · trienpent · hexpeno
Trienhex group: trihexo · tethexo · penhexo · trienhex

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