|
Search: id:A157220
|
|
|
| A157220 |
|
Number of sublattices of index n fixed by a certain point group (see reference for precise definition). |
|
+0
1
|
|
| 3, 2, 4, 2, 6, 2, 4, 2, 6, 2, 8, 2, 6, 4, 4, 2, 6, 2, 8, 4, 6, 2, 6, 2, 6, 2, 4, 2, 12
(list; graph; listen)
|
|
|
OFFSET
|
2,1
|
|
|
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: A089214 A057038 A099871 this_sequence A106288 A013633 A016559
Adjacent sequences: A157217 A157218 A157219 this_sequence A157221 A157222 A157223
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
N. J. A. Sloane (njas(AT)research.att.com), Feb 25 2009
|
|
|
Search completed in 0.002 seconds
|
