A059105 - OEIS

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A059105

Number of n-dimensional torsion-free crystallographic groups with trivial center.

0, 0, 1, 4, 101, 5004 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,4`
	LINKS	`W. Plesken and T. Schulz, CARAT Homepage`
	CROSSREFS	`Cf. A004027, A004028, A004029, A059104.` `Sequence in context: A198278 A202990 A202989 * A129435 A129702 A180818` `Adjacent sequences: A059102 A059103 A059104 * A059106 A059107 A059108`
	KEYWORD	`nonn,hard,nice`
	AUTHOR	`Tilman Schulz (tilman(AT)momo.math.rwth-aachen.de), Feb 13 2001`

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Last modified February 18 00:14 EST 2012. Contains 206085 sequences.