OFFSET
1,2
COMMENTS
Included in accordance of OEIS policy of including published but incorrect sequences to serve as pointers to the correct versions.
LINKS
John S. Rutherford, Sublattice enumeration. IV. Equivalence classes of plane sublattices by parent Patterson symmetry and colour lattice group type, Acta Cryst. (2009). A65, 156-163. See Table 2, row p4. Has a typo in a(13).
CROSSREFS
KEYWORD
dead
STATUS
approved
