This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A385364 #21 Aug 05 2025 16:32:22 %S A385364 13,14,18,20,23,24,26,28,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44, %T A385364 45,46,48,49,50,51,52,53,54,55,56,57,59,60,62,63,64,65,66,67,68,69,70, %U A385364 72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95 %N A385364 Numbers whose cube is the sum of four distinct nonnegative cubes. %C A385364 Numbers v such that v^3 = w^3+x^3+y^3+z^3, w>x>y>z>=0, is soluble. %C A385364 Inspired by A023042. %t A385364 fQ[n_] := Length[ Select[ PowersRepresentations[ n^3, 4, 3], Union@# == # && #[[1]] > 0 &]] > 0; Select[ Range@ 95, fQ] %Y A385364 Cf. A000578, A003072, A023042, A274334. %K A385364 nonn %O A385364 1,1 %A A385364 _Robert G. Wilson v_, Jul 29 2025