%I A001916 M4772 N2038
%S A001916 2,3,11,13,19,29,37,41,53,59,61,67,71,79,83,101,107,131,139,149,163,173,
%T A001916 179,181,191,197,199,211,227,239,251,269,271,293,311,317,347,349,359,373,
%U A001916 379,389,401,409,419,421,443,449,461,467,479,491,509,521,523,541,547,557
%N A001916 Primes p such that the congruence 2^x = 5 (mod p) is solvable.
%D A001916 M. Kraitchik, Recherches sur la Th\'{e}orie des Nombres. Gauthiers-Villars, 
               Paris, Vol. 1, 1924, Vol. 2, 1929, see Vol. 1, p. 64.
%D A001916 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A001916 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%H A001916 T. D. Noe, <a href="b001916.txt">Table of n, a(n) for n=1..1000</a>
%Y A001916 Cf. A001915.
%Y A001916 Sequence in context: A045335 A020599 A038967 this_sequence A089151 A089152 
               A115669
%Y A001916 Adjacent sequences: A001913 A001914 A001915 this_sequence A001917 A001918 
               A001919
%K A001916 nonn
%O A001916 1,1
%A A001916 N. J. A. Sloane (njas(AT)research.att.com).
%E A001916 Better description and more terms from David W. Wilson (davidwwilson(AT)comcast.net), 
               Dec 12 2000. Description corrected by Joe K. Crump (joecr(AT)carolina.rr.com), 
               Jan 17 2001.