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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 Edit

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

Sources Edit

  1. -illions - Almost Infinite
Numbers By SuperJedi224

Fibonacci Numbers

Pound-Star Notation