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A256413
Number of n-dimensional Bravais lattices.
1
1, 1, 5, 14, 64, 189, 841
OFFSET
0,3
REFERENCES
H. Brown, R. Bülow, J. Neubüser, H. Wondratschek and H. Zassenhaus, Crystallographic Groups of Four-Dimensional Space. Wiley, NY, 1978, p. 52.
P. Engel, "Geometric crystallography", in P. M. Gruber and J. M. Wills, editors, Handbook of Convex Geometry. North-Holland, Amsterdam, Vol. B, pp. 989-1041.
Lomont, J. S. "Crystallographic Point Groups." 4.4 in Applications of Finite Groups. New York: Dover, pp. 132-146, 1993.
Yale, P. B. "Crystallographic Point Groups." 3.4 in Geometry and Symmetry. New York: Dover, pp. 103-108, 1988.
LINKS
D. Freittloh, Highly symmetric fundamental cells for lattices in R^2 and R^3, arXiv.1305.1798 [math.CO], 2013.
Opgenorth, J; Plesken, W; Schulz, T, Crystallographic Algorithms and Tables, Acta Crystallogr. A, 54 (1998), 517-531.
Pegg, Ed Jr., Bravais Lattice.
W. Plesken and W. Hanrath, The lattices of six-dimensional Euclidean space, Math. Comp., 43 (1984), 573-587. [Warning: gives wrong value for a(6).]
Bernd Souvignier, Space groups, 2007, p. 30
CROSSREFS
Cf. A004029.
A004030 is an incorrect version found in the literature.
Sequence in context: A197788 A197661 A004030 * A346212 A324011 A194994
KEYWORD
nonn,hard,more,changed
AUTHOR
N. J. A. Sloane, Apr 04 2015
STATUS
approved