-1730

Appears in sequences

• Coefficients of the '6th-order' mock theta function lambda(q).at n=33A053272
• a(n) = 2^phi(n) - Sum_{j=0..n} binomial(phi(n), phi(j)).at n=16A073318
• A triangular sequence of coefficients of the expansion of a Green's function for the radial Morse potential with x being the kinetic energy and t being the radius: Hamiltonian; H=K+V=x+Exp[-2*t]-2*Exp[t];G*Exp[t*x)=Exp[x*t]/(t-H); p(t,x)=Exp[t*x]/(t-x-Exp[-2*t] + 2*Exp[-t]).at n=25A138160
• Imbalance of the number of parts of all partitions of n.at n=25A194796
• G.f. satisfies A(x) = (1 + x*A(x)) * (1 - x*A(x)^2).at n=12A364374