%I A046145
%S A046145 0,0,1,2,3,2,5,3,0,2,3,2,0,2,3,0,0,3,5,2,0,0,7,5,0,2,7,2,0,2,0,3,0,0,3,
%T A046145 0,0,2,3,0,0,6,0,3,0,0,5,5,0,3,3,0,0,2,5,0,0,0,3,2,0,2,3,0,0,0,0,2,0,0,
%U A046145 0,7,0,5,5,0,0,0,0,3,0,2,7,2,0,0,3,0,0,3,0,0,0,0,5,0,0,5,3,0,0
%N A046145 Smallest primitive root of n, or 0 if no root exists.
%C A046145 The value 0 at index 0 says 0 has no primitive roots, but the 0 at index 
               1 says 1 has a primitive root of 0, the only real 0 in the sequence.
%H A046145 T. D. Noe, <a href="b046145.txt">Table of n, a(n) for n=0..10000</a>
%H A046145 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               PrimitiveRoot.html">Link to a section of The World of Mathematics.</
               a>
%Y A046145 Cf. A001918, A046144, A046146.
%Y A046145 Sequence in context: A118176 A005731 A132962 this_sequence A103309 A007967 
               A054494
%Y A046145 Adjacent sequences: A046142 A046143 A046144 this_sequence A046146 A046147 
               A046148
%K A046145 nonn,easy,nice
%O A046145 0,4
%A A046145 Eric Weisstein (eric(AT)weisstein.com)
%E A046145 Initial terms corrected by Harry J. Smith (hjsmithh(AT)sbcglobal.net), 
               Jan 27 2005