%I A066389
%S A066389 1,1,1,2,1,2,1,4,2,2,1,5,1,2,1,9,1,4,1,5,2,2,1,13,2,2,4,4,1,4,1,20,1,2,
%T A066389 1,12,1,2,2,12,1,6,1,4,2,2,1,35,2,4
%N A066389 Number of 2-generated groups of order n: groups that have a generating 
               set of size <=2, i.e. are cyclic or of the form <a,b>.
%Y A066389 Cf. A000001.
%Y A066389 Sequence in context: A080825 A034693 A072342 this_sequence A077191 A050363 
               A166974
%Y A066389 Adjacent sequences: A066386 A066387 A066388 this_sequence A066390 A066391 
               A066392
%K A066389 nonn,nice
%O A066389 1,4
%A A066389 Sharon Sela (sharonsela(AT)hotmail.com), Dec 23 2001
%E A066389 More terms from Reiner Martin (reinermartin(AT)hotmail.com), Dec 29 2001