%I #7 Mar 30 2012 17:37:05
%S 2,2,0,0,0,720,10080,241920,5080320,108864000,2474841600,60833203200,
%T 1569209241600,42978897561600,1265828788224000,38916389191680000,
%U 1280474741145600000,44189183316934656000
%N Number of identity bracelets with n labeled beads of 2 colors.
%H C. G. Bower, <a href="/transforms2.html">Transforms (2)</a>
%F "DHJ" (bracelets, identity, labeled) transform of 2, 0, 0, 0...
%F n! * A032239.
%K nonn
%O 1,1
%A _Christian G. Bower_