A343262 - cp's OEIS frontend

A343262 a(n) is the number of edges of a regular polygon P with the property that packing n nonoverlapping equal circles inside P, arranged in a configuration with dihedral symmetry D_{2m} with m >= 3, maximizes the packing density.

n	a(n)
3	3
4	4
5	5
6	3
7	6
8	7
9	4
10	3
11	5
12	6
13	6
14	7
15	3
16	4
17	4
18	6
19	6
20	4
21	3

[3, 4, 5, 3, 6, 7, 4, 3, 5, 6, 6, 7, 3, 4, 4, 6, 6, 4, 3]