%I A122182
%S A122182 1,3,6,10669,9,18,3763,1010,20,35,2951,42,50,27,36,49,56,110,697,578,
%T A122182 156,540923,70,287,104,147,4044,970,220,59378,119,345,66,3007,75,
%U A122182 1990362,184,190,100,115,81,162,470,406,812,6631,105,310,160,207,322
%N A122182 Least positive number k such that 2^k (mod k) == 2n, or 0 if no such 
               k exists.
%Y A122182 A bisection of A036236: a(n) = A036236(2n).
%Y A122182 Cf. A124977.
%Y A122182 Sequence in context: A157548 A134901 A157564 this_sequence A157596 A111316 
               A152590
%Y A122182 Adjacent sequences: A122179 A122180 A122181 this_sequence A122183 A122184 
               A122185
%K A122182 nonn
%O A122182 0,2
%A A122182 N. J. A. Sloane (njas(AT)research.att.com), May 11 2007, Jul 18 2008
%E A122182 New definition from Benoit Jubin, Jul 17 2008
%E A122182 More terms from Max Alekseyev (maxale(AT)gmail.com), May 08 2009