1318315075domain: NAppears in sequencesNumber of points in Z^9 of norm <= n.at n=9A055415Number of points in Z^n of norm <= 9.at n=9A055433a(n) = [x^(n^2)] theta_3(x)^n/(1 - x), where theta_3() is the Jacobi theta function.at n=9A302861