The Pentaetherfactor is equal to 100![#,3] = 100!#^^^# in Extensible ! Notation. The term was coined by Yabuszko[1].
Approximations in other notations
| Notation | Approximation |
|---|---|
| BEAF | \(X\uparrow\uparrow\uparrow X\ \& \ 100\) |
| Bird's Array Notation | \(\{100,100[1\backslash1\backslash2]2\}\) |
| Extended Cascading-E notation | \(E100\#\text{^^}\#\#100\) |
| X-Sequence Hyper-Exponential Notation | \(100\{X>>X\}100\) |
| Fast-growing hierarchy | \(f_{\zeta_0}(100)\) |
Sources
- ↑ Yabuszko, Extensible ! Notation