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 A049869 #6 Jun 13 2013 11:36:54 %S A049869 1,18,648,683253810,18277247229553861734086286719130, %T A049869 183338496737597442552032556385320299285077278828958986337475538895489368739369176364504064357258701313760 %N A049869 Number of equivalence classes of 3-valued Post functions of n variables under action of group GL(n,3). %D A049869 V. Jovovic, The cycle indices polynomials of some classical groups, Belgrade, 1995, unpublished. %Y A049869 Cf. A000585. %K A049869 nonn,nice %O A049869 0,2 %A A049869 _Vladeta Jovovic_