Search: id:A053761
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%I A053761
%S A053761 0,2,2,3,0,2,2,3,3,2,2,5,0,2,2,3,3,2,2,3,3,2,2,5,0,2,2,3,3,2,2,3,3,2,2,
%T A053761 7,5,2,2,3,0,2,2,3,3,2,2,5,5,2
%N A053761 Least positive integer k for which the Jacobi symbol (k|2*n-1) is less 
               than 1, where 2*n-1 is a nonsquare; a(n)=0 if 2*n-1 is a square.
%D A053761 R. Baillie and S. S. Wagstaff, Lucas pseudoprimes, Math. Comp. 35 (1980) 
               1391-1417; Math. Rev. 81j:10005.
%D A053761 S. R. Finch, Mathematical Constants, Cambridge, 2003, pp. 443-448.
%D A053761 P. Ribenboim, The New Book of Prime Number Records, 3rd ed., Spinger-Verlag 
               1996; Math. Rev. 96k:11112.
%H A053761 S. R. Finch, <a href="http://algo.inria.fr/bsolve/constant/hdmrd/jacobi.html">
               Quadratic Residues</a>
%Y A053761 Sequence in context: A139365 A071479 A091426 this_sequence A138067 A125093 
               A103516
%Y A053761 Adjacent sequences: A053758 A053759 A053760 this_sequence A053762 A053763 
               A053764
%K A053761 nonn
%O A053761 1,2
%A A053761 S. R. Finch (Steven.Finch(AT)inria.fr), Apr 05 2000

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