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A157220 Erroneous version of A304182. 0
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; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..30.

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 4. Contains errors for n = 24 and 28.]

CROSSREFS

Sequence in context: A193295 A256918 A099871 * A304182 A256284 A322979

Adjacent sequences:  A157217 A157218 A157219 * A157221 A157222 A157223

KEYWORD

dead

AUTHOR

N. J. A. Sloane, Feb 25 2009

STATUS

approved

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Last modified August 6 19:52 EDT 2020. Contains 336256 sequences. (Running on oeis4.)