88770domain: NAppears in sequencesG.f.: 1 = Sum_{n>=0} a(n)*x^n / Product_{k=1..n+1} (1+k*x)^3.at n=5A193333Number of partitions of n not containing 4*(number of parts) as a part.at n=44A238492Coefficients of polynomials related to ordered set partitions. Triangle read by rows, T_{m}(n, k) for m = 2 and 0 <= k <= n.at n=17A326477