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.
CROSSREFS
KEYWORD
dead
AUTHOR
STATUS
approved