Search: id:A096103
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%I A096103
%S A096103 1,1,1,1,4,1,1,2,4,1,1,4,7,1,9,1,3,4,5,9,1,1,3,4,9,10,12,1,9,11,1,4,1,
               9,
%T A096103 1,2,4,8,9,13,15,16,1,7,13,1,4,5,6,7,9,11,16,17,1,9,1,4,16,1,3,5,9,15,
               1,
%U A096103 2,3,4,6,8,9,12,13,16,18,1,1,4,6,9,11,14,16,19,21,24,1,3,9,17,23,25,1,
               4
%N A096103 Table read by rows: row n contains the quadratic residues modulo n which 
               are coprime to n.
%C A096103 Each '1' begins a row.
%H A096103 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               QuadraticResidue.html">Quadratic Residue</a>
%o A096103 (PARI) maybesqgcd1(n) = { for(x=2,n, b=floor(x/2); a=vector(b+1); for(y=1,
               b, z=y^2%x; if(z<>0, a[y]=z; ) ); s=vecsort(a); c=1; for(j=2,b+1, 
               if(s[j]<>s[j-1], c++; if(gcd(x,s[j])==1,print1(s[j]",")) ) ); ) }
%Y A096103 Sequence in context: A100261 A016526 A030747 this_sequence A143441 A016527 
               A010325
%Y A096103 Adjacent sequences: A096100 A096101 A096102 this_sequence A096104 A096105 
               A096106
%K A096103 nonn,tabf
%O A096103 2,5
%A A096103 Cino Hilliard (hillcino368(AT)gmail.com), Jul 21 2004
%E A096103 Edited by Don Reble (djr(AT)nk.ca), Apr 16 2007

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