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 A293651 #15 Feb 06 2018 13:03:46 %S A293651 3367,68913,152551,195841,625177,684019,1147627,1548729,2113921, %T A293651 2628073,2985983,3242197,3442887,4488211,4663295,4931101,5318677, %U A293651 7194889,8741691,9667693,14110579,15072967,15438185,16776487,21463407,22910797,24769502,26122131,26460217 %N A293651 Sum of two (possibly negative) coprime cubes in at least 3 ways, but not the sum of 2 noncoprime cubes. %C A293651 Not every term is cubefree; some are sb^3 where s is in A159843 and b > 1. %H A293651 Rosalie Fay, <a href="/A293651/b293651.txt">Table of n, a(n) for n = 1..165</a> %e A293651 21463407 = 271^3 + 116^3 = 284^3 - 113^3 = 368^3 - 305^3, and 271 & 116 are coprime, etc., so 21463407 is in the sequence. %Y A293651 Cf. A023050 (positive cubes); A293650 (allows noncoprime); A293646, A293648 %K A293651 nonn %O A293651 1,1 %A A293651 _Rosalie Fay_, Oct 16 2017