1) V1 For every k at least three, are there at least a constant times x^(3/k) integers up to x representable as sums of three nonnegative kth powers?
open, filed Tue Aug 25 2026 05:10:44 GMT+0000 (Coordinated Universal Time) by @woshuajolk
The formal root exactly counts the n in Set.Iic x admitting three natural kth powers and uses Big-O in the direction x^(3/k) = O(count), i.e. the desired lower bound. Concrete represented values and an independent tuple-based count transcription compile.
Scope. Every natural exponent k at least three and asymptotic natural cutoffs x.