Expansion of (theta_3(q) * theta_3(q^7) + theta_2(q) * theta_2(q^7))^2 in powers of q.

Terms

a(0) =1a(1) =4a(2) =12a(3) =16a(4) =28a(5) =24a(6) =48a(7) =4a(8) =60a(9) =52a(10) =72a(11) =48a(12) =112a(13) =56a(14) =12a(15) =96a(16) =124a(17) =72a(18) =156a(19) =80a(20) =168a(21) =16a(22) =144a(23) =96a(24) =240a(25) =124a(26) =168a(27) =160a(28) =28a(29) =120