%I A051026
%S A051026 1,2,3,5,7,13,17,33,45,73,103,205,253,505,733,1133,1529,3057,3897,7793,
%T A051026 10241,16513,24593,49185,59265,109297,163369,262489,355729,711457,
%U A051026 879937,1759873
%N A051026 Number of primitive subsequences of {1, 2, ..., n}.
%H A051026 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               PrimitiveSequence.html">Link to a section of The World of Mathematics.</
               a>
%Y A051026 Sequence in context: A046732 A046703 A118722 this_sequence A028865 A053435 
               A096478
%Y A051026 Adjacent sequences: A051023 A051024 A051025 this_sequence A051027 A051028 
               A051029
%K A051026 nonn,nice
%O A051026 0,2
%A A051026 Eric Weisstein (eric(AT)weisstein.com)
%E A051026 More terms from David Wasserman (wasserma(AT)spawar.navy.mil), May 02 
               2002