70040domain: NAppears in sequencesa(n) = 40*(200*n - 49).at n=8A157652G.f. A satisfies -x+(1+x^3-x)*A+(x^4-x^2)*A^2+(x^5-x^3)*A^3-x^4*A^4 = 0.at n=18A177794Number of ways to choose a constant rooted partition of each part in a constant rooted partition of n.at n=48A301763