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 A051388 #20 Jul 04 2018 08:47:31 %S A051388 1729,2457,4104,4914,4977,8001,8216,10773,13832,15561,16263,19656, %T A051388 20683,32832,39312,39816,40033,46683,64008,64232,65728,66339,80236, %U A051388 86184,110656,110808,124336,124488,127062,130104,132678,132867,134379,149389,157248,165464,166887,171288 %N A051388 Numbers whose 4th power can be expressed as the sum of two positive cubes in more than one way. %H A051388 Chai Wah Wu, <a href="/A051388/b051388.txt">Table of n, a(n) for n = 1..358</a> %e A051388 1729^4 = 1729^3 + 20748^3 = 15561^3 + 17290^3. %o A051388 (PARI) for(i=1, 10^5, x=i^4; c=0; for(j=1, floor(sqrtn(x/2,3)), if(ispower(x-j^3,3), c++)); if(c>1, print(i" "c))) \\ _Donovan Johnson_, Aug 03 2009 %Y A051388 Cf. A051386, A051387. %Y A051388 Cf. A226777, A226950. %K A051388 nonn %O A051388 1,1 %A A051388 _Jud McCranie_ %E A051388 More terms from _John W. Layman_, Feb 24 2003 %E A051388 a(18)-a(24) from _Donovan Johnson_, Aug 03 2009 %E A051388 a(25)-a(38) from _Donovan Johnson_, Dec 03 2010