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%I #11 Feb 19 2017 23:35:13
%S 1,2,10,74,1060,38746
%N Number of Bieberbach groups in dimension n: torsion-free crystallographic groups.
%D Charlap, Leonard S., Bieberbach Groups and Flat Manifolds. Universitext. Springer-Verlag, New York, 1986. xiv+242 pp. ISBN: 0-387-96395-2 MR0862114 (88j:57042). See p. 6.
%D C. Cid, T. Schulz: Computation of Five and Six Dimensional Bieberbach Groups, Experimental Mathematics 10:1 (2001), 109-115
%D Manuel Caroli, Monique Teillaud. Delaunay triangulations of closed Euclidean dorbifolds. Discrete and Computational Geometry, Springer Verlag, 2016, 55 (4), pp.827-853. 10.1007/s00454-016-9782-6, hal-01294409; https://hal.inria.fr/hal-01294409/document
%H W. Plesken and T. Schulz, <a href="http://wwwb.math.rwth-aachen.de/carat/">The CARAT Homepage</a>
%H W. Plesken and T. Schulz, <a href="/A006226/a006226.pdf">CARAT Homepage</a> [Cached copy in pdf format (without subsidiary pages), with permission]
%H W. Plesken and T. Schulz, <a href="/A006226/a006226_1.pdf">Introduction to CARAT</a> [Cached copy in pdf format (without subsidiary pages), with permission]
%Y Cf. A004027, A004028, A004029, A059105.
%K nonn,hard,nice,more
%O 1,2
%A Tilman Schulz (tilman(AT)momo.math.rwth-aachen.de), Feb 13 2001
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