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 A179384 #4 Mar 30 2012 18:55:34 %S A179384 0,1,9,15,21,27,35,39,45,51,57,65,69,77,81,87,95,99,105,111,125,129, %T A179384 135,147,155,161,165,171,177,189,195,209,221,225,231,237,249,255,261, %U A179384 267,275,279,291,305,309,315,329,335,345,351,357,365,371,377,381,387,395 %N A179384 Nonprimes in A040976. %F A179384 A040976 \ A001359. [From _R. J. Mathar_, Jul 13 2010] %Y A179384 Cf. A040976 %K A179384 nonn,easy %O A179384 1,3 %A A179384 _Odimar Fabeny_, Jul 12 2010 %E A179384 More terms from _Vincenzo Librandi_ and _R. J. Mathar_, Jul 13 2010