Search: id:A003656
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%I A003656 M3777
%S A003656 5,8,12,13,17,21,24,28,29,33,37,41,44,53,56,57,61,69,73,76,77,88,89,92,
%T A003656 93,97,101,109,113,124,129,133,137,141,149,152,157,161,172,173,177,181,
%U A003656 184,188,193,197,201,209,213,217,233,236,237,241,248,249,253,268,269
%N A003656 Discriminants of real quadratic fields with unique factorization.
%C A003656 Real quadratic number fields with class number 1
%D A003656 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A003656 D. A. Buell, Binary Quadratic Forms. Springer-Verlag, NY, 1989, pp. 224-241.
%D A003656 H. Cohen, Advanced Topics in Computational Number Theory, Springer, 2000, 
               p. 534.
%D A003656 H. Hasse, Number Theory, Springer-Verlag, NY, 1980, p. 576.
%D A003656 Pohst and Zassenhaus, Algorithmic Algebraic Number Theory, Cambridge 
               Univ. Press, page 432.
%H A003656 T. D. Noe, <a href="b003656.txt">Table of n, a(n) for n=1..1000</a>
%H A003656 Henri Cohen and X.-F. Roblot, <a href="http://www.ams.org/mcom/2000-69-231/
               S0025-5718-99-01111-4/S0025-5718-99-01111-4.pdf">Computing the Hilbert 
               Class Field of Real Quadratic Fields</a>, Math. Comp. 69 (2000), 
               1229-1244.
%H A003656 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               ClassNumber.html">Class Number</a>
%Y A003656 Cf. A035120.
%Y A003656 Sequence in context: A079896 A133315 A003658 this_sequence A003246 A143748 
               A124378
%Y A003656 Adjacent sequences: A003653 A003654 A003655 this_sequence A003657 A003658 
               A003659
%K A003656 nonn,nice
%O A003656 1,1
%A A003656 N. J. A. Sloane (njas(AT)research.att.com), Mira Bernstein
%E A003656 More terms from Antonio G. Astudillo (afg_astudillo(AT)hotmail.com), 
               May 15 2002

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