229411

Appears in sequences

• Integer part of Sum_{i=1..n} binomial(n,i) * (n/i)^i.at n=11A007806
• Triangle read by rows: number of commutative monoids of order n with k idempotents.at n=50A058142
• E.g.f.: -LambertW(-x)/(1-x).at n=7A277505