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 A133170 #8 Feb 28 2020 04:39:02 %S A133170 0,0,0,1,0,3,0,6,3,23,12,146,205,1647,4694,32319,138384,942341,5258327 %N A133170 Minimal isotopy classes of Latin trades of size n. %H A133170 I. M. Wanless, <a href="https://ajc.maths.uq.edu.au/pdf/39/ajc_v39_p247.pdf">A computer enumeration of small latin trades</a>, Australas. J. Combin. 39, (2007) 247-258. %Y A133170 Cf. A007083. %K A133170 nonn,more %O A133170 1,6 %A A133170 _Ian Wanless_, Oct 11 2007