%I #5 Sep 10 2019 12:02:04
%S 1,2,3,7,16,56,204,884,4143,21164,115976,678631,4213598,27644642,
%T 190899340,1382959429,10480142148,82864874000,682076806160,
%U 5832742226226,51724158235578,474869816272728,4506715738447324
%N Dirichlet convolution of b_n=1 with Bell numbers.
%t Table[DivisorSum[n, BellB[#-1]&], {n, 1, 25}] (* _Vaclav Kotesovec_, Sep 10 2019 *)
%K nonn
%O 1,2
%A _Erich Friedman_