In X-Sequence Hyper-Exponential Notation, Expandor (alternatively Cent-hyperon) is equal to 100{X+1}100[1], or 100 expanded to the 100. The name was coined by SuperJedi224.

It is greater than and comparable to Bowers' Corporal.


The name is derived from the function expansion.


  1. [1]


Notation Approximation
BEAF \(\{100,100,1,2\}\) (exact)
Bird's array notation \(\{100,100,1,2\}\) (exact)
Hyper-E notation \(E100\#\#100\#100\)
Chained arrow notation \(100\rightarrow 100\rightarrow 100\rightarrow 2\)
Fast-growing hierarchy \(f_{\omega+1}(100)\)
Hardy hierarchy \(H_{\omega\uparrow(\omega+1)}(100)\)
Slow-growing hierarchy \(g_{\Gamma_0}(99)\)

See AlsoEdit

Numbers By SuperJedi224

Fibonacci Numbers

Pound-Star Notation

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