53732domain: NAppears in sequencesExpansion of g.f. x*(-1-x-3*x^2-x^3+2*x^5)/((2*x^3+x^2-1)*(x^4+1)).at n=27A107851Expansion of Product_{k=1..12} theta_3(q^k), where theta_3() is the Jacobi theta function.at n=43A320246