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 A257351 #3 May 01 2015 21:30:56 %S A257351 0,0,1,1,3,3,5,12,10,45,9,268,11 %N A257351 Number of non-2-reductive medial quandles of size n up to isomorphism. %H A257351 P. Jedlicka, 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. %K A257351 nonn,more %O A257351 1,5 %A A257351 _N. J. A. Sloane_, May 01 2015