36010domain: NAppears in sequencesa(n+1) = 2*a(n-2) + a(n-1), with a(0) = 3, a(1) = 0, and a(2) = 2.at n=25A072328Number of partitions p of n such that (number of distinct parts of p) <= max(p) - min(p).at n=40A239955G.f. A(x) satisfies A(x) = 1 / ((1 - x) * (1 - x * A(x^3))).at n=21A367691