%I A026119
%S A026119 1,2,4,10,30,94,316,1096,3856,13798,49940,182362,671092,2485534,
%T A026119 9256396,34636834,130150588,490853416,1857283156,7048151672,26817356776,
%U A026119 102280151422,390937468408,1497207322930,5744387279818,22076468764192
%N A026119 Bisection of A000016 (also of A000013).
%F A026119 Sum[d|(2n+1), phi(d)*2^{(2n+1)/d} ] / (4n+2).
%Y A026119 Cf. A000013, A000016, A000116.
%Y A026119 Bisection of A053634 and A053656.
%Y A026119 Sequence in context: A148115 A148116 A149833 this_sequence A149834 A149835 
               A149836
%Y A026119 Adjacent sequences: A026116 A026117 A026118 this_sequence A026120 A026121 
               A026122
%K A026119 nonn
%O A026119 0,2
%A A026119 N. J. A. Sloane (njas(AT)research.att.com), Apr 12 2000