A347635 - OEIS

A347635

Given n equally spaced points on the circumference of a circle, a(n) is the maximum number of those points that can be chosen so that the lengths of the line segments drawn connecting those a(n) points as vertices are all different.

0, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 7, 7, 7, 7, 8