Search: id:A157226
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%I A157226
%S A157226 1,1,2,1,3,1,2,1,3,1,4,1,3,2,2,1,3,1,4,2,3,1,4,1,3,1,4,1,6
%N A157226 Number of sublattices of index n fixed by a certain point group (see 
               reference for precise definition).
%D A157226 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].
%Y A157226 Sequence in context: A162696 A108103 A111376 this_sequence A156249 A164677 
               A001511
%Y A157226 Adjacent sequences: A157223 A157224 A157225 this_sequence A157227 A157228 
               A157229
%K A157226 nonn
%O A157226 2,3
%A A157226 N. J. A. Sloane (njas(AT)research.att.com), Feb 25 2009

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