217723390domain: NAppears in sequencesE.g.f.: (x^2/2-2*x+3)*tan(x/2+Pi/4)-3*x^3-x-3.at n=14A131611Principal number of K. Saito for tree of type E_n.at n=14A131656Number of n-bit binary strings in which the length of any run of ones is a power of two.at n=30A253511