%I #9 Mar 30 2012 17:37:05
%S 4,12,120,1440,24480,482400,11793600,329011200,10567065600,
%T 380131315200,15220275840000,669519696384000,32145251314176000,
%U 1671451069736448000,93606882905023488000,5616332944630087680000
%N Number of aperiodic necklaces with n labeled beads of 4 colors.
%H C. G. Bower, <a href="/transforms2.html">Transforms (2)</a>
%H <a href="/index/Lu#Lyndon">Index entries for sequences related to Lyndon words</a>
%F "CHJ" (necklace, identity, labeled) transform of 4, 0, 0, 0...
%F Equals n! * A027377(n).
%K nonn
%O 1,1
%A _Christian G. Bower_