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 A073263 #13 Oct 15 2013 22:31:26 %S A073263 4,5,6,9,12,52,75,80,95,105,422,1002,2841,12165,16944,170997,430041, %T A073263 5844984,11095683,71438394,86938085,485470043,3341061731,11203279551, %U A073263 25053055391,29329179630,150058180590,278953774325,771115150044 %N A073263 Integer quotients of partial sum of first n composite and n (see A053781). %F A073263 a(n)=A073262(n)/A053781(n) %t A073263 s=0; Do[s=s+FixedPoint[n+PrimePi[ # ]+1&, n]; If[IntegerQ[s/n], k=k+1; t[[k]]=s/n; Print[s/n]], {n, 1, 12000000}] %Y A073263 Cf. A002808, A053781, A073255-A073262. %K A073263 nonn %O A073263 1,1 %A A073263 _Labos Elemer_, Jul 22 2002 %E A073263 a(17) - a(19) from _Klaus Brockhaus_, Aug 12 2009 %E A073263 a(20)-a(26) from _Ray Chandler_, Jul 19 2010 %E A073263 a(27)-a(29) from _Donovan Johnson_, May 23 2011