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A007308 Number of crystallographic orbits in n dimensions.
(Formerly M4832)
1
1, 12, 30, 427 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

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.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Table of n, a(n) for n=0..3.

CROSSREFS

Sequence in context: A214311 A005147 A320122 * A065138 A279821 A008841

Adjacent sequences:  A007305 A007306 A007307 * A007309 A007310 A007311

KEYWORD

nonn,hard,nice

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified November 22 16:26 EST 2019. Contains 329396 sequences. (Running on oeis4.)