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 A272023 #22 Apr 26 2016 21:33:01 %S A272023 75,87,126,135,150,171,174,204,225,246,252,261,270,297,300,333,342, %T A272023 348,375,378,405,408,435,450,457,492,504,513,522,525,540,543,594,600, %U A272023 609,612,618,630,645,666,675,684,696,723,738,741,750,753,756,783,788,810,813,815,816,825,855,870,882,891,900,914 %N A272023 Numbers n such that n^3 = (x^3 + y^3 + z^3) / 3 where x > y > z > 0, is soluble. %C A272023 Numbers whose cube is the average of three distinct positive cubes. %C A272023 If n is in this sequence, then k*n is also a member of this sequence for all k > 0. %C A272023 Terms that are not divisible by 3 are 457, 788, 815, 914, ... %C A272023 Terms that are not members of A023042 are 457, 914, 1078, ... %H A272023 Chai Wah Wu, <a href="/A272023/b272023.txt">Table of n, a(n) for n = 1..1000</a> %e A272023 75 is a term because 75^3 = (10^3 + 17^3 + 108^3) / 3. %e A272023 150 = 2*75 is a term. %e A272023 87 is a term because 87^3 = (13^3 + 54^3 + 122^3) / 3. %e A272023 457 is a term because 457^3 = (226^3 + 379^3 + 604^3) / 3. %Y A272023 Cf. A023042, A024975. %K A272023 nonn %O A272023 1,1 %A A272023 _Altug Alkan_, Apr 18 2016