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 A277841 #14 Nov 05 2016 08:41:30 %S A277841 1,74,1804128,53512221536494,2922627429145967591227933, %T A277841 497730359833453928180319002991414602093, %U A277841 403397426941463986598664115278880491308873007636372427413,2209668743041973325985756217800328983151637526070225333484395817216844313778044 %N A277841 Number of finite automata with n states, n input symbols and three output symbols. %H A277841 Scott Burns, Marko Riedel, Markus Scheuer, <a href="http://math.stackexchange.com/questions/1968594/">Number of functions</a>, Math StackExchange. %H A277841 Scott Burns, Marko Riedel, Markus Scheuer, <a href="http://math.stackexchange.com/questions/1993637/">Enumeration of finite automata</a>, Math StackExchange. %H A277841 F. Harary and E. Palmer, <a href="http://dx.doi.org/10.1016/S0019-9958(67)91186-2">Enumeration of finite automata</a>, Information and Control, 10 (1967), 499-508. %H A277841 Marko Riedel, <a href="/A277839/a277839.maple.txt">Maple code for A277839-A277844.</a> %Y A277841 Cf. A277839, A277840, A277842, A277843, A277844. %K A277841 nonn %O A277841 1,2 %A A277841 _Marko Riedel_, Nov 01 2016