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A157222
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Number of sublattices of index n fixed by a certain point group (see reference for precise definition).
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0
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0, 1, 1, 2, 3, 3, 4, 5, 6, 5, 8, 6, 9, 10, 10, 8, 15, 9, 14, 14, 15, 11, 21, 14, 18, 17, 22, 14, 30
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OFFSET
| 2,4
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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].
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CROSSREFS
| Sequence in context: A094182 A075699 A112330 * A064047 A111899 A074753
Adjacent sequences: A157219 A157220 A157221 * A157223 A157224 A157225
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Feb 25 2009
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