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 A097584 #10 Feb 22 2021 07:45:37 %S A097584 1,2,5,18,136,5634 %N A097584 Number of well-rounded minimal classes of lattices in dimension n. %D A097584 J. Martinet, Les réseaux parfaits des espaces Euclidiens, Masson, Paris, 1996. %D A097584 J. Martinet, Perfect Lattices in Euclidean Spaces, Springer-Verlag, NY, 2003. %D A097584 G. Nebe, Review of J. Martinet, Perfect Lattices in Euclidean Spaces, Bull. Amer. Math. Soc., 41 (No. 4, 2004), 529-533. %H A097584 Christian Batut and Jacques Martinet, <a href="http://jamartin.perso.math.cnrs.fr/Lattices/webdesign.pdf">Lattices and spherical designs</a>, 2005-2014. See pages 12-13. %Y A097584 Cf. A037075, A065536. %K A097584 nonn,hard,more %O A097584 1,2 %A A097584 _N. J. A. Sloane_, Sep 22 2004 %E A097584 a(6) added from Batut & Martinet by _Andrey Zabolotskiy_, Feb 20 2021