Expansion of (theta_3(z)*theta_3(19z) + theta_2(z)*theta_2(19z))^3.

Terms

a(0) =1a(1) =6a(2) =12a(3) =8a(4) =6a(5) =36a(6) =72a(7) =60a(8) =60a(9) =126a(10) =168a(11) =180a(12) =248a(13) =312a(14) =240a(15) =352a(16) =438a(17) =540a(18) =372a(19) =606a(20) =396a(21) =760a(22) =600a(23) =900a(24) =504a(25) =1146a(26) =792a(27) =1160a(28) =1140a(29) =1560