%I A046067
%S A046067 0,1,1,2,1,1,2,1,3,6,1,1,2,2,1,8,1,1,2,1,1,2,2,583,2,1,1,4,2,5,4,1,1,
%T A046067 2,1,3,2,1,3,2,1,1,4,2,1,8,2,1,2,1,3,16,1,3,6,1,1,2,3,1,8,6,1,2,3,1,4,
%U A046067 1,3,2,1,53,6,8,3,4,1,1,8,6,3,2,1,7,2,8,1,2,2,1,4,1,3,6,1,1,2,4,15,2
%N A046067 Smallest m such that (2n-1)2^m+1 is prime, or -1 if no such value exists.
%C A046067 There exist odd integers 2k-1 such that (2k-1)2^n+1 is always composite.
%D A046067 Ribenboim, P. The New Book of Prime Number Records. New York: Springer-Verlag, 
               pp. 357-359, 1996.
%H A046067 T. D. Noe, <a href="b046067.txt">Table of n, a(n) for n=1..1000</a>
%H A046067 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               RieselNumber.html">Link to a section of The World of Mathematics.</
               a>
%H A046067 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               SierpinskiNumberoftheSecondKind.html">Link to a section of The World 
               of Mathematics.</a>
%Y A046067 Cf. A046068.
%Y A046067 Bisection of A040076. Cf. A033809
%Y A046067 Sequence in context: A128807 A071628 A033809 this_sequence A132066 A102190 
               A138650
%Y A046067 Adjacent sequences: A046064 A046065 A046066 this_sequence A046068 A046069 
               A046070
%K A046067 nonn
%O A046067 1,4
%A A046067 Eric Weisstein (eric(AT)weisstein.com)