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 A120836 #3 Mar 30 2012 18:50:55 %S A120836 1,2,3,5,6,8,10,12,14,16,18,20,23,25,27,29,33,35,39,41,43,45,49,51,53, %T A120836 58,59,63,65,68,72,75,77,81,83,86,90,92,97,102,104,107,110,115,117, %U A120836 120,122,128,132,134,138,140,143,148,150,157,160,162,164,169,175,177,180 %N A120836 Integer parts of partial sums of p*q/(p+q), with primes p and q. %C A120836 a(n) = floor(A120833(n)/A120834(n)). %Y A120836 Cf. A120835. %K A120836 nonn %O A120836 1,2 %A A120836 _Reinhard Zumkeller_, Jul 24 2006