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
Lineus series: lineus · planus · spacus · tetrus · pentus · hexus · heptus · octus · nonus · decus · undecus · duodecus · tredecus · vigintus · trigintus · quadragintus
Lineans series: lineans · centus · millus · planans · spacans · tetrans · pentans · decans · vigintans · trigintans · quadragintans · lineduans · centans · planduans · spacduans · decduans · viginduans · linetrians · plantrians · spactrians · dectrians · linequadrans · planquadrans · decquadrans · linequintans · decquintans · linesextans · lineseptans · lineoctans · linenovans · linedecans · lineundecans · linedodecans · linetridecans · lineicosans · linetriacontans · linetetracontans
Enalineans series: enalineans · enaplanans · enaspacans · enadecans · enalineduans · enadecduans · enalinetrians · enalinedecans · enalineicosans · diolineans · dioplanans · diodecans · diolineduans · diolinetrians · diolinedecans · trialineans · triaplanans · trialineduans · trialinedecans · tesseralineans · tesseralineduans · pendelineans · exilineans · eptalineans · oktolineans · enealineans
