|
Search: id:A157227
|
|
|
| A157227 |
|
Number of sublattices of index n fixed by a certain point group (see reference for precise definition). |
|
+0
1
|
|
| 1, 1, 2, 2, 4, 2, 4, 4, 6, 4, 8, 4, 8, 8, 8, 6, 12, 6, 12, 10, 12, 8, 16, 10, 14, 12, 16, 10, 24
(list; graph; listen)
|
|
|
OFFSET
|
2,3
|
|
|
REFERENCES
|
John S. Rutherford, Sublattice enumeration. IV. Equivalence classes of plane sublattices by parent Patterson symmetry and colour lattice group type, Acta Cryst. (2009). A65, 156163. [See Table 4].
|
|
CROSSREFS
|
Sequence in context: A033097 A036845 A094269 this_sequence A054536 A001316 A161831
Adjacent sequences: A157224 A157225 A157226 this_sequence A157228 A157229 A157230
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
N. J. A. Sloane (njas(AT)research.att.com), Feb 25 2009
|
|
|
Search completed in 0.002 seconds
|
