Search: id:A046125
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%I A046125
%S A046125 9,18,16,54,25,51,31,131,34,87,41,206,37,95,68,322,45,150,47,350,85,139,
%T A046125 68,511,95,190,93,457,83,255,73,708,101,219,103,668,85,237,115,912,109,
%U A046125 339,106,691,154,268,107,1365,132,345,159,770,114,427,163,1205,179,291
%N A046125 Conjectured number of negative fundamental discriminants having class 
               number n.
%C A046125 Most entries almost certain but not proved.
%D A046125 Duncan A. Buell, Small class numbers and extreme values of L-functions 
               of quadratic fields, Math. Comp., 31 (1977), 786-796.
%H A046125 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               ClassNumber.html">Link to a section of The World of Mathematics.</
               a>
%H A046125 <a href="Sindx_Qua.html#quadfield">Index entries for sequences related 
               to quadratic fields</a>
%e A046125 a(1) = 9 because the discriminants {-3,-4,-7,-8,-11,-19,-43,-67,-163} 
               are the only ones with class number 1.
%Y A046125 Cf. A014602, A014603, A006203, A013658, A046002 through A046016, A048925, 
               A056987, A081319, A038552.
%Y A046125 Sequence in context: A109050 A103700 A158623 this_sequence A040072 A034728 
               A129855
%Y A046125 Adjacent sequences: A046122 A046123 A046124 this_sequence A046126 A046127 
               A046128
%K A046125 nonn
%O A046125 1,1
%A A046125 Eric Weisstein (eric(AT)weisstein.com)
%E A046125 Edited by Robert G. Wilson v (rgwv(AT)rgwv.com), May 13 2003
%E A046125 Corrected and extended by Dean Hickerson (dean.hickerson(AT)yahoo.com), 
               May 20 2003. The values were obtained by transcribing and combining 
               data from Tables 1-3 of Buell's paper, which has information for 
               all values of n up to 125.

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