%I A071109
%S A071109 1,2,2,6,14,26,50,102,214,426,834,1678,3398,6778,13482,27022
%V A071109 1,-2,2,-6,14,-26,50,-102,214,-426,834,-1678,3398,-6778,13482,-27022
%N A071109 Expansion of product k>=1 1/(1+2t^k).
%Y A071109 Cf. A070933, A032302, A000700.
%Y A071109 Sequence in context: A019100 A019101 A051890 this_sequence A005310 A002203 
               A097341
%Y A071109 Adjacent sequences: A071106 A071107 A071108 this_sequence A071110 A071111 
               A071112
%K A071109 sign
%O A071109 0,2
%A A071109 Sharon Sela (sharonsela(AT)hotmail.com), May 27 2002