%I A057956
%S A057956 2,4,3,6,4,7,3,8,5,7,3,10,3,7,7,11,4,11,5,11,6,8,4,13,8,7,9,10,5,14,4,
%T A057956 14,6,8,9,16,5,10,6,15,4,16,4,12,12,8,3,17,4,13,8,12,5,19,10,13,7,9,4,
%U A057956 21,5,9,11,18,8,15,7,14,9,16,4,22,5,10,16,14,7,14,5,20,11,10,5,22,9,10
%N A057956 Number of prime factors of 5^n - 1 (counted with multiplicity).
%H A057956 S. S. Wagstaff, Jr., <a href="http://www.cerias.purdue.edu/homes/ssw/
               cun/main600">Main Tables</a> from the Cunningham Project.
%H A057956 S. S. Wagstaff, Jr., <a href="http://www.cerias.purdue.edu/homes/ssw/
               cun/index.html">The Cunningham Project</a>
%F A057956 Mobius transform of A085030 - T. D. Noe (noe(AT)sspectra.com), Jun 19 
               2003
%Y A057956 Cf. A057951-A057958, A046051.
%Y A057956 Cf. A085030.
%Y A057956 Sequence in context: A072937 A129509 A015049 this_sequence A151734 A175027 
               A119477
%Y A057956 Adjacent sequences: A057953 A057954 A057955 this_sequence A057957 A057958 
               A057959
%K A057956 nonn
%O A057956 1,1
%A A057956 Patrick De Geest (pdg(AT)worldofnumbers.com), Nov 15 2000.