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A034769
Dirichlet convolution of Catalan numbers with Bell numbers.
0
1, 2, 4, 11, 29, 98, 335, 1316, 5574, 26038, 132771, 737470, 4421609, 28387672, 193573820, 1392654721, 10515499817, 82994520352, 682554444859, 5834509494401, 51730722356462, 474894282556542, 4506807221010963
OFFSET
1,2
MATHEMATICA
Table[Sum[BellB[n/d - 1]*CatalanNumber[d - 1], {d, Divisors[n]}], {n, 1, 25}] (* Vaclav Kotesovec, Sep 10 2019 *)
CROSSREFS
Sequence in context: A298269 A148148 A148149 * A219017 A285216 A212422
KEYWORD
nonn
STATUS
approved