Expansion of (theta_3(z)*theta_3(4z)*theta_3(16z)+theta_2(z)*theta_2(4z)*theta_2(16z))^3.

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =6a(5) =0a(6) =0a(7) =0a(8) =12a(9) =0a(10) =0a(11) =0a(12) =8a(13) =0a(14) =0a(15) =0a(16) =12a(17) =0a(18) =0a(19) =0a(20) =60a(21) =24a(22) =0a(23) =0a(24) =96a(25) =96a(26) =0a(27) =0a(28) =48a(29) =120