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 A242275 #15 Oct 01 2014 23:01:00 %S A242275 1,1,2,5,15,55,246,1398,10301,98532,1246479,20837171,466087624, %T A242275 13943041873,563753074915,30784745506212 %N A242275 Number of isomorphism classes of 2-reductive abelian/medial quandles. %C A242275 Both names "abelian" and "medial" refer to the identity (xy)(uv)=(xu)(yv). A quandle is called 2-reductive if all orbits are projection quandles. %H A242275 P. Jedlička, A. Pilitowska, D. Stanovský, A. Zamojska-Dzienio, <a href="http://arxiv.org/abs/1409.8396">The structure of medial quandles</a>, arXiv:1409.8396 [math.GR], 2014. %H A242275 David Stanovský, <a href="http://www.karlin.mff.cuni.cz/~stanovsk/quandles/">Calculating with quandles</a> GAP code to calculate the numbers. %Y A242275 Cf. A165200. %K A242275 nonn,hard %O A242275 1,3 %A A242275 _David Stanovsky_, Oct 01 2014