%I
%S 1,2,3,5,7,15,19,27,31,47
%N Numbers n such that if an urn contains n balls, with at least one each of c colors, there is no c > 1 for which a combination of c colors exists such that it is equally probable for c balls randomly selected from the urn to all be either the same color or distinct colors.
%C Is this sequence finite and complete?
%H William Rex Marshall, <a href="/A228652/a228652.txt">Pascal program for this sequence</a>.
%o (PASCAL) See the link section.
%Y Cf. A228650, A228651, A228653.
%K nonn
%O 1,2
%A _William Rex Marshall_, Aug 29 2013
