47656250domain: NAppears in sequencesSecond binomial transform of F(n+1).at n=14A081567Kekulé numbers for certain benzenoids (see the Cyvin-Gutman book for details).at n=7A123358Number of paths of length n starting at initial node of the path graph P_9.at n=29A178381a(n) = Sum_{k>=0} (-1)^k*binomial(n,5*k+4).at n=29A289389