74384domain: NAppears in sequencesNumber of partitions of n not containing 3*(number of parts) as a part.at n=43A238491Number of multisets of nonempty multisets of nonempty sets of positive integers with total sum n.at n=15A330457a(n) = Sum_{k=0..n} 2^k * binomial(2*k+1,2*n-2*k).at n=8A387764