%I #8 Mar 30 2012 17:37:05
%S 3,6,48,432,5760,83520,1572480,32659200,792529920,21337344000,
%T 642820147200,21181450752000,763681830912000,29769991592140800,
%U 1250889916243968000,56282514026618880000,2701972433782702080000
%N Number of aperiodic necklaces with n labeled beads of 3 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 3, 0, 0, 0...
%F n! * A027376.
%K nonn
%O 1,1
%A _Christian G. Bower_