|
|
A059105
|
|
Number of n-dimensional torsion-free crystallographic groups with trivial center.
|
|
1
|
|
|
|
OFFSET
|
1,4
|
|
LINKS
|
W. Plesken and T. Schulz, CARAT Homepage [Cached copy in pdf format (without subsidiary pages), with permission]
W. Plesken and T. Schulz, Introduction to CARAT [Cached copy in pdf format (without subsidiary pages), with permission]
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,hard,nice,more
|
|
AUTHOR
|
Tilman Schulz (tilman(AT)momo.math.rwth-aachen.de), Feb 13 2001
|
|
STATUS
|
approved
|
|
|
|