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Vigintans is equal to [1,20] = 484820 = 484,215,263,689,798,428,837,764,998,235,160,576 using PlantStar's notation.[1] The term was coined by PlantStar.

Approximations

Notation Lower bound Upper bound
Arrow notation \(48\uparrow48\uparrow20\)
Down-arrow notation \(48\downarrow\downarrow21\)
Steinhaus-Moser Notation 23[3][3] 24[3][3]
Copy notation 6[6[34]] 7[7[34]]
H* function H(2H(10)) H(3H(10))
Taro's multivariable Ackermann function A(3,A(3,111)) A(3,A(3,112))
Pound-Star Notation #*((1))*(1,6)*8 #*((1))*(4,5,1)*6
BEAF {48,{48,20}}
Hyper-E notation E[48]20#2
Bashicu matrix system (0)(1)[10] (0)(1)[11]
Hyperfactorial array notation (29!)! (30!)!
Fast-growing hierarchy \(f_2(f_2(107))\) \(f_2(f_2(108))\)
Hardy hierarchy \(H_{\omega^22}(107)\) \(H_{\omega^22}(108)\)
Slow-growing hierarchy \(g_{\omega^{\omega^{20}}}(48)\)

Sources

See also

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