Product t2(q^d); d | 6, where t2 = theta2(q)/(2*q^(1/4)).

Terms

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