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Googology Wiki

Terrible tethrathoth-teriterated-tethracruxiturreted-tethritertethracross is equal to E100((#^^##)^^#>(#^^##+#^^#))^^#100 using Extended Cascading-E Notation[1]. This term was coined by Sbiis Saibian and is a member of the Tethracross regiment.

Approximations in other notations[]

Notation Approximation
Bird's array notation \(\{100,100[1 \backslash 2[1 \backslash 2]2[1 \backslash 1 \backslash 2]2 \backslash 2]2\}\)
Fast-growing hierarchy \(f_{\varepsilon_{\zeta_02+\varepsilon_0 +1} }(100)\)

Sources[]

  1. Sbiis Saibian, 4.3.7 xec_numbers. Retrieved 2023-12-17.