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Dirichlet convolution of b_n=1 with Bell numbers.
0

%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_