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 A241584 #11 Jan 12 2020 11:26:56 %S A241584 1,4,11,43,155,761,4043,27190 %N A241584 Number of orbits of Sym(n)^2 under action of Iso_1(n). %H A241584 Mathieu Bogaerts and Peter Dukes, <a href="http://dx.doi.org/10.1016/j.disc.2014.03.002">Semidefinite programming for permutation codes</a>, Discrete Math. 326 (2014), 34--43. MR3188985. %F A241584 Proposition 3.2 of Bogaerts et al. gives an explicit formula. %Y A241584 Cf. A241585, A110143. %K A241584 nonn,more %O A241584 1,2 %A A241584 _N. J. A. Sloane_, May 12 2014