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 A075137 #3 Mar 30 2012 17:22:26
%S A075137 1,7,83,697,1685,22521,714167,6551627,273085171,6372562445,
%T A075137 109738148749,111017326363,6843690854527,6909897986791,
%U A075137 494972427791585,9482037783487391,85993305141830183,3724238207261666261
%N A075137 Numerator of the generalized harmonic number H(n,5,1).
%C A075137 The denominators are in A075138. See A075135 for more details.
%t A075137 a=5; b=1; maxN=20; s=0; Numerator[Table[s+=1/(a n + b), {n, 0, maxN-1}]]
%Y A075137 Cf. A075135, A075138.
%K A075137 easy,frac,nonn
%O A075137 1,2
%A A075137 _T. D. Noe_, Sep 04 2002