Product t2(q^d); d | 22, where t2 = theta2(q)/(2*q^(1/4)).

Terms

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