%I A061161
%S A061161 1,1,13,55,1235,4615,55801,200343,8977475,36804235,367235363,
%T A061161 1444888289,32062742231,120729974115,1205864254225,5201022002071,
%U A061161 395884671433315,1603069490974835,15989295873680415,64312573140322525
%N A061161 Numerators in expansion of Euler transform of b(n)=1/4.
%C A061161 Denominators of c(n) are 2^A004134(n).
%H A061161 N. J. A. Sloane, <a href="transforms.txt">Transforms</a>
%F A061161 Numerators of c(n), where c(n)=1/(4*n)*Sum_{k=1..n} c(n-k)*sigma(k), 
               n>0, c(0)=1.
%Y A061161 Cf. A000712, A061159, A061160.
%Y A061161 Sequence in context: A158485 A005902 A051798 this_sequence A007202 A147384 
               A147011
%Y A061161 Adjacent sequences: A061158 A061159 A061160 this_sequence A061162 A061163 
               A061164
%K A061161 easy,nonn
%O A061161 0,3
%A A061161 Vladeta Jovovic (vladeta(AT)eunet.rs), Apr 17 2001