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

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =8a(5) =16a(6) =0a(7) =0a(8) =24a(9) =96a(10) =96a(11) =0a(12) =32a(13) =208a(14) =384a(15) =256a(16) =32a(17) =224a(18) =576a(19) =512a(20) =368a(21) =384a(22) =768a(23) =768a(24) =288a(25) =1088a(26) =1632a(27) =1536a(28) =1344a(29) =1744