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Search: id:A157228
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| A157228 |
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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
1
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| 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0
(list; graph; listen)
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OFFSET
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2,1
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REFERENCES
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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 5].
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CROSSREFS
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Sequence in context: A024889 A101349 A111900 this_sequence A105563 A011765 A129251
Adjacent sequences: A157225 A157226 A157227 this_sequence A157229 A157230 A157231
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Feb 25 2009
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