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 A162519 #5 Mar 30 2012 17:34:00 %S A162519 1,0,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,1,1,0,1,1,1,1,1,1, %T A162519 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, %U A162519 1,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 %N A162519 Characteristic function of magic numbers A018226: 0 if n is a magic number else 1. %C A162519 Also, successive digits of A130598. %C A162519 This sequence is related to atomic nuclei. See also A162518. %H A162519 <a href="/index/Ch#char_fns">Index entries for characteristic functions</a> %Y A162519 Cf. A018226, A130517, A130556, A130598, A130602, A162518, A162521, A162522, A162523, A162524, A162525. %K A162519 fini,nonn %O A162519 1,1 %A A162519 _Omar E. Pol_, Jul 07 2009