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 A103352 #11 Jan 17 2015 23:21:31
%S A103352 1,512,10077696,5159780352,10077696000000000,373248000000000,
%T A103352 15061903105536000000000,7711694390034432000000000,
%U A103352 4098310578334288576512000000000,4098310578334288576512000000000
%N A103352 Denominators of sum_{k=1..n} 1/k^9 = Zeta(9,n).
%C A103352 For the numerators, comments and a link reference see A103351.
%t A103352 s=0;lst={};Do[s+=n^1/n^10;AppendTo[lst,Denominator[s]],{n,3*4!}];lst (* _Vladimir Joseph Stephan Orlovsky_, Jan 24 2009 *)
%t A103352 Table[ HarmonicNumber[n, 9] // Denominator, {n, 1, 10}] (* _Jean-François Alcover_, Dec 04 2013 *)
%K A103352 nonn,frac,easy
%O A103352 1,2
%A A103352 _Wolfdieter Lang_, Feb 15 2005