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 A162518 #9 Dec 30 2018 00:03:21 %S A162518 0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0, %T A162518 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, %U A162518 0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 %N A162518 Characteristic function of magic numbers A018226: 1 if n is a magic number else 0. %C A162518 Sequence related to atomic nuclei. %H A162518 Antti Karttunen, <a href="/A162518/b162518.txt">Table of n, a(n) for n = 1..10000</a> %H A162518 <a href="/index/Ch#char_fns">Index entries for characteristic functions</a> %o A162518 (PARI) A162518(n) = if(n<1, 0, polcoeff( x^126+x^82+x^50+x^28+x^20+x^8+x^2, n)); \\ _Antti Karttunen_, Dec 24 2018, after code in A089011 %Y A162518 Cf. A018226, A130517, A130556, A130598, A130602, A162519, A162521, A162522, A162523, A162524, A162525. %K A162518 nonn %O A162518 1,1 %A A162518 _Omar E. Pol_, Jul 07 2009 %E A162518 Data section extended up to a(126) by _Antti Karttunen_, Dec 24 2018