%I #5 Sep 10 2019 12:39:23
%S 1,4,11,35,96,310,932,3106,10719,40956,175024,856215,4745038,29240098,
%T 195682588,1397312405,10523188868,82994029902,682464226648,
%U 5833904550458,51727645023058,474880276916928,4506747119506932
%N Dirichlet convolution of 3^(n1) with Bell numbers.
%t Table[Sum[BellB[n/d  1]*3^(d  1), {d, Divisors[n]}], {n, 1, 25}] (* _Vaclav Kotesovec_, Sep 10 2019 *)
%K nonn
%O 1,2
%A _Erich Friedman_
