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 A096795 #3 Mar 30 2012 18:50:44 %S A096795 1,3,11,25,137,1019,2143,6709,76319,1019867,2084779,36161963, %T A096795 699329537,16317371911,82657705331,250947687593,7357796373397, %U A096795 230420777138107,465354165304139,17362507669146743,717205745892079663 %N A096795 Numerator of sum of reciprocals of first n prime powers; denominator=A051451(n). %e A096795 n=6: 1/1 + 1/2 + 1/3 + 1/4 + 1/5 + 1/7 = %e A096795 (420+210+140+105+84+60)/420 = 1019/420 = a(6)/A051451(6). %Y A096795 Cf. A000961, A024451. %K A096795 nonn,frac %O A096795 1,2 %A A096795 _Reinhard Zumkeller_, Aug 17 2004