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 A066890 #24 May 21 2022 14:04:58 %S A066890 216,729,1728,5832,6859,8000,13824,15625,19683,21952,24389,27000, %T A066890 46656,54872,64000,68921,74088,85184,91125,97336,110592,125000,148877, %U A066890 157464,175616,185193,195112,216000,250047,287496,300763,328509,343000,357911,373248,421875 %N A066890 Cubes that are the sum of three distinct positive cubes. %D A066890 David Wells, The Penguin Dictionary of Curious and Interesting Numbers (Rev. ed. 1997), pp. 130, 147. %H A066890 Donovan Johnson, <a href="/A066890/b066890.txt">Table of n, a(n) for n = 1..1000</a> %F A066890 a(n) = (A023042(n))^3. - _Christian N. K. Anderson_, Aug 10 2014 %e A066890 729 is included because it is 9^3 and 1^3 + 6^3 + 8^3 = 729. %t A066890 maxCube = (m = 67)^3; Reap[ Do[ bmax = (maxCube - a^3)^(1/3) // Ceiling; Do[ cmax = (maxCube - b^3)^(1/3) // Ceiling; Do[ n = a^3 + b^3 + c^3; If[n <= maxCube, If[ IntegerQ[n^(1/3)], Sow[n]]], {c, b, cmax}], {b, a, bmax}], {a, 1, (maxCube - 2)^(1/3) // Ceiling}]][[2, 1]] // Flatten // Union (* _Jean-François Alcover_, Mar 07 2013 *) %K A066890 nonn %O A066890 1,1 %A A066890 _Harvey P. Dale_, Jan 22 2002 %E A066890 Offset corrected by _Arkadiusz Wesolowski_, Aug 06 2012