The dupentapent is equal to {5,5(2)2} in BEAF. The term was coined by Exeen Management World.[1]
Approximations[]
| Notation | Approximation |
|---|---|
| Bird's array notation | \(\{5,5[3]2\}\) (exact) |
| DeepLineMadom's Array Notation | \(5[1\{3\}2]5\) |
| Cascading-E notation | \(\text{E}[5]5\#\text{^}\#\#5\) |
| Strong array notation | \(\text{s}(5,5\{3\}2)\) |
| X-Sequence Hyper-Exponential Notation | \(5\{X^{X^2}\}5\) |
| Fast-growing hierarchy | \(f_{\omega^{\omega^2 } }(5)\) |
| Hardy hierarchy | \(H_{\omega^{\omega^{\omega^2 } } }(5)\) |
| Slow-growing hierarchy | \(g_{\psi_0(\Omega^{\Omega^{\Omega\omega}})}(5)\) |