Search: id:A091338
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%I A091338
%S A091338 1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,
%T A091338 0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,
%U A091338 1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,0
%V A091338 1,-1,0,1,-1,0,-1,-1,0,1,1,0,1,1,0,1,-1,0,-1,-1,0,-1,1,0,1,-1,0,-1,-1,
               0,-1,-1,0,1,1,0,
%W A091338 1,1,0,1,-1,0,-1,1,0,-1,1,0,1,-1,0,1,-1,0,-1,1,0,1,1,0,1,1,0,1,-1,0,-1,
               -1,0,-1,1,0,1,
%X A091338 -1,0,-1,-1,0,-1,-1,0,1,1,0,1,1,0,-1,-1,0,-1,1,0,-1,1,0,1,-1,0,1,-1,0
%N A091338 a(n) = (3/n), where (k/n) is the Kronecker symbol.
%H A091338 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               KroneckerSymbol.html">Kronecker Symbol</a>
%F A091338 If n==0 (mod 3) a(n)=0; for p ==1 or 11 (mod 12) (i.e. p>3 in A038874), 
               a(p)=+1; for p==2, 5 or 7 (mod 12) (i.e. p in A038875), a(p)=-1 - 
               Benoit Cloitre (benoit7848c(AT)orange.fr), Jan 03 2004
%o A091338 (PARI) a(n)=kronecker(3,n)
%Y A091338 Sequence in context: A117441 A049347 A010892 this_sequence A016345 A016148 
               A016333
%Y A091338 Adjacent sequences: A091335 A091336 A091337 this_sequence A091339 A091340 
               A091341
%K A091338 sign
%O A091338 1,1
%A A091338 Eric Weisstein (eric(AT)weisstein.com), Dec 30, 2003
%E A091338 More terms from Benoit Cloitre (benoit7848c(AT)orange.fr), Jan 03 2004

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