Expansion of (theta_3(z)*theta_3(6z)+theta_2(z)*theta_2(6z))^3.

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =6a(5) =0a(6) =0a(7) =12a(8) =12a(9) =0a(10) =0a(11) =48a(12) =8a(13) =0a(14) =48a(15) =60a(16) =6a(17) =0a(18) =96a(19) =48a(20) =24a(21) =64a(22) =96a(23) =96a(24) =30a(25) =0a(26) =192a(27) =96a(28) =36a(29) =192