132736domain: NAppears in sequencesa(n) = Sum_{p in P} y(1)*y(2), where P is the set of partitions of n, and y(k) is the number of parts with multiplicity at least k in p.at n=35A316861Expansion of (1/x) * Series_Reversion( x * (1-x) * (1-x^3)^3 ).at n=10A369299