%I A006371 M0207
%S A006371 1,1,1,1,1,2,2,2,1,2,3,2,2,2,3,3,2,3,4,2,1,4,5,4,2,2,4,4,3,4,5,4,1,4,7,
%T A006371 3,3,4,5,6,3
%N A006371 Number of reduced binary quadratic forms of discriminant -n.
%D A006371 H. Davenport, The Higher Arithmetic. Cambridge Univ. Press, 5th edition, 
               1982, p. 144.
%D A006371 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%Y A006371 Cf. A006374.
%Y A006371 Sequence in context: A109037 A120965 A151931 this_sequence A000177 A162545 
               A162544
%Y A006371 Adjacent sequences: A006368 A006369 A006370 this_sequence A006372 A006373 
               A006374
%K A006371 nonn
%O A006371 3,6
%A A006371 N. J. A. Sloane (njas(AT)research.att.com).