880308

Appears in sequences

• Coefficients of power series that satisfies A(x)^3 - 9*x*A(x)^4 = 1, A(0)=1.at n=6A078532
• Recursive sequence (n+1)*a(n) = 3*(3*n-2)*a(n-1).at n=8A155579
• Number of nonisomorphic graded posets with 0 and non-uniform Hasse graph of rank n, with no 3-element antichain.at n=11A206949