%I
%S 1,3,8,20,49,119,290,714,1781,4507,11580,30208,79941,214327,581292,
%T 1592496,4400765,12251895,34326566,96694866,273639617,777444807,
%U 2216341466,6336999666,18165573373,52191551315,150254448730,433350470586
%N Binomial transform of A000031.
%F G.f.: (1/(1  x)) * (1  Sum_{k>=1} phi(k)*log(1  2*(x/(1  x))^k)/k).  _Ilya Gutkovskiy_, Nov 12 2019
%Y Cf. A000031.
%K nonn
%O 0,2
%A _N. J. A. Sloane_, Apr 29 2000
