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 A054746 #12 Jun 29 2017 08:41:08 %S A054746 1,6,67,1379,40000,1488212,66468616,3459744878,205517092374, %T A054746 13719689837415,1016860316477931,82855990193202263, %U A054746 7361905026684383986,708398087768889272827,73390382551302560225067,8144731151602797676232825,963990026196934640329291135 %N A054746 Number of nonisomorphic connected binary n-state automata without output under input permutations. %C A054746 Inverse Euler transform of A054745. %D A054746 F. Harary and E. Palmer, Graphical Enumeration, 1973. %H A054746 Alois P. Heinz, <a href="/A054746/b054746.txt">Table of n, a(n) for n = 1..45</a> %H A054746 M. A. Harrison, <a href="http://dx.doi.org/10.4153/CJM-1965-010-9">A census of finite automata</a>, Canad. J. Math., 17, No. 1, 1965, p. 110. %e A054746 There are 40000 nonisomorphic connected binary 5-state automata under input permutations. %Y A054746 Cf. A054732, A027834. %K A054746 nonn %O A054746 1,2 %A A054746 _Vladeta Jovovic_, Apr 22 2000 %E A054746 More terms from _Alois P. Heinz_, Feb 20 2017