2050344domain: NAppears in sequencesNumber of ways of writing n as a sum of 10 squares.at n=20A000144Theta series of {D_10}^{+} lattice.at n=40A004532Theta series of D_10 lattice.at n=10A008432a(n) = [x^n] (theta_3(x^(1/2))^n + theta_4(x^(1/2))^n)/2, where theta_3() and theta_4() are the Jacobi theta functions.at n=10A303333