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 A046525 #7 Oct 15 2013 22:30:20 %S A046525 2,8,12,18,24,36,40,56,60,72,80,84,96,108,132,180,240,252,288,360,480, %T A046525 504,720,1260 %N A046525 Numbers common to A033950 and A034884. %t A046525 Select[Range[1265], Mod[#, x = DivisorSigma[0, #]] == 0 && # < x^2 &] (* _Jayanta Basu_, Jun 27 2013 *) %Y A046525 Cf. A035033, A036763, A046526. %K A046525 nonn,fini,full %O A046525 1,1 %A A046525 _Labos Elemer_