A293956 Maximum over all sets of n points in the plane of the number of second-smallest distances between the points.
0, 0, 2, 4, 6, 9, 11, 14, 18, 20
Offset: 1
Links
- Peter Brass, The maximum number of second smallest distances in finite planar sets, Discrete & Computational Geometry 7.1 (1992): 371-379.
- Peter Brass, Annotated version of Fig. 1 from Brass (1992), illustrating small values of a(n).
