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%I
%S 1,2,1,3,1,2,1,5,2,2,1,3,1,2,1,7,1,4,1,3,1,2,1,5,2,2,3,3,1,2,1,11,1,2,
%T 1,6,1,2,1,5,1,2,1,3,2,2,1,7,2,4,1,3,1,6,1,5,1,2,1,3,1,2,2,15,1,2,1,3,
%U 1,2,1,10,1,2,2,3,1,2,1,7,5,2,1,3,1,2,1,5,1,4,1,3,1,2,1,11,1,4,2,6,1,2,1,5
%N Number of Abelian groups of order 2n.
%Y Bisection of A000688.
%K nonn,mult,easy
%O 1,2
%A _N. J. A. Sloane_, Jan 28 2005
%E More terms from _Joshua Zucker_, May 10 2006
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