Expansion of (theta_3(z)*theta_3(19z) + theta_2(z)*theta_2(19z))^4.

Terms

a(0) =1a(1) =8a(2) =24a(3) =32a(4) =24a(5) =64a(6) =192a(7) =272a(8) =248a(9) =392a(10) =752a(11) =976a(12) =1152a(13) =1648a(14) =2048a(15) =2272a(16) =3128a(17) =4128a(18) =4440a(19) =4648a(20) =6064a(21) =6656a(22) =8128a(23) =8480a(24) =10112a(25) =9416a(26) =13552a(27) =12512a(28) =16384a(29) =15632