A028496 Erroneous version of A152455.

1, 2, 2, 4, 2, 6, 4, 6, 4, 12, 4, 12

Offset

2,2

Comments

Original title: Lowest dimension in which rotational symmetry of order n is possible for an infinite regular set of points.

The value a(11)=12 in Goodman and O'Rourke is incorrect. - Sean A. Irvine, Feb 02 2020

References

J. E. Goodman and J. O'Rourke, editors, Handbook of Discrete and Computational Geometry, CRC Press, 1997, p. 935.

Links

Table of n, a(n) for n=2..13.

Crossrefs

Sequence in context: A003978 A122645 A122646 * A063428 A133439 A234649

Adjacent sequences: A028493 A028494 A028495 * A028497 A028498 A028499

Keyword

dead

Author

N. J. A. Sloane

Status

approved