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The qigfol is equal to s(10,25,2) using strong array notation, or \(10 \uparrow\uparrow 25\).[1] The term was coined by Aarex Tiaokhiao.
Approximations in other notations[]
| Notation | Approximation |
|---|---|
| Up-arrow notation | \(10 \uparrow\uparrow 25\) (exact) |
| Chained arrow notation | \(10 \rightarrow 25 \rightarrow 2 \) (exact) |
| Hyper-E notation | \(\textrm E1\#25\) (exact) |
| Hyperfactorial array notation | \(27!1\) |
| BEAF | \(\{10,25,2\}\) (exact) |
| Fast-growing hierarchy | \(f_3(24)\) |
| Hardy hierarchy | \(H_{\omega^224}(28)\) |
| Slow-growing hierarchy | \(g_{\varepsilon_0}(25)\) |