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The Bigrand-icosi-hyperillion, coined by SuperJedi224, is equal to HHH20(20)(20)(20), where H(x)=103x+3. [1]

Approximations

Notation Approximation
Hyper-E notation \(\textrm E63\#10\#3\)
Fast-growing hierarchy \(f_{3}(f_{3}(f_{3}(21)))\)
Hardy hierarchy \(H_{\omega^{3}*3}(21)\)

Sources

"-Illion" numbers by SuperJedi224

Numbers By SuperJedi224

Fibonacci Numbers

Pound-Star Notation

Based on the Faxul

Googovipleccix family

Graham Sequence Numbers

-Illion numbers

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