%I A003655 M3782
%S A003655 5,8,13,17,29,37,41,53,61,73,89,97,101,109,113,137,149,157,173,181,193,
%T A003655 197,233,241,269,277,281,293,313,317,337,349,353,373,389,397,409,421,
%U A003655 433,449,457,461,509,521,541,557,569,593,601,613,617,641,653,661,673
%N A003655 Discriminants of real quadratic fields with narrow class number 1.
%C A003655 Or, positive fundamental discriminants with form class number 1.
%D A003655 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A003655 D. A. Buell, Binary Quadratic Forms. Springer-Verlag, NY, 1989, pp. 224-241.
%Y A003655 Sequence in context: A058240 A097268 A003653 this_sequence A082823 A143747 
               A101345
%Y A003655 Adjacent sequences: A003652 A003653 A003654 this_sequence A003656 A003657 
               A003658
%K A003655 nonn
%O A003655 1,1
%A A003655 N. J. A. Sloane (njas(AT)research.att.com), Mira Bernstein
%E A003655 Better definition from David Brink (brink(AT)math.ku.dk), Dec 30 2007, 
               Jan 01 2008