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 A105684 #4 Sep 08 2022 08:45:17 %S A105684 1,0,0,0,0,132,132,0,330,110,0,24 %N A105684 Weight distribution of [11,6,5]_3 ternary Golay perfect code. %D A105684 J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag. %D A105684 F. J. MacWilliams and N. J. A. Sloane, The Theory of Error-Correcting Codes, Elsevier/North Holland, 1977. %e A105684 Weight enumerator is x^11 + 132*x^6*y^5 + 132*x^5*y^6 + 330*x^3*y^8 + 110*x^2*y^9 + 24*y^11. %o A105684 (Magma) K:=FiniteField(3); C:=GolayCode(K,false); W<x,y>:=WeightEnumerator(C); W; %Y A105684 Cf. A105676, A001380, A002289, A105683. %K A105684 nonn,fini,full %O A105684 0,6 %A A105684 _N. J. A. Sloane_, May 06 2005