%I
%S 4,6,8,10,12,12,14,16,2,2,6,2
%N Order of the symmetry group of the densest possible packing of N circles in a larger circle. (If there are different patterns with the same density pick the largest value of the symmetry group order.)
%C a(14) is unknown but conjectured to be 2.
%C The conjectured sequence is 4, 6, 8, 10, 12, 12, 14, 16, 2, 2, 6, 2, 2, 10, 2, 2, 12, 12, 2...
%H Wikipedia, <a href="http://en.wikipedia.org/wiki/Circle_packing_in_a_circle">Circle packing in a circle</a>
%K sign,hard,more
%O 2,1
%A _Keenan Pepper_, Sep 21 2013
