The teterto-thraelgathor is equal to E100#^#^###*#^#^###*#^#^###*#^#^###100 using Cascading-E Notation.[1] The term was coined by Sbiis Saibian.

Approximations in other notations

Notation Approximation
BEAF \(\{100,4 (1,0,0,1) 2\}\)
Bird's array notation \(\{100,4 [2,1,1,2] 2\}\)
Aarex's array notation \(\{100,4 [2,1,1,2] 2\}\)
Hyperfactorial array notation \(100![1,[1,[4,1,4],1,2],1,3]\)
Fast-growing hierarchy \(f_{\omega^{(\omega^{\omega^3}) 4}}(100)\)
Hardy hierarchy \(f_{\omega^{\omega^{(\omega^{\omega^3}) 4}}}(100)\)
Slow-growing hierarchy \(g_{\theta(\Omega^{(\Omega^{\Omega^3}) 3 + \Omega^{\Omega^2 \omega}})}(100)\)

Sources

  1. Saibian, Sbiis. 4.3.5 Cascading-E NumbersOne to Infinity. Retrieved 2016-09-09.
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