Product t2(q^d); d | 24, where t2 = theta2(q)/(2*q^(1/4)).

Terms

a(0) =1a(1) =1a(2) =1a(3) =3a(4) =2a(5) =3a(6) =6a(7) =5a(8) =5a(9) =10a(10) =10a(11) =9a(12) =17a(13) =15a(14) =15a(15) =26a(16) =23a(17) =21a(18) =35a(19) =30a(20) =33a(21) =51a(22) =40a(23) =45a(24) =67a(25) =55a(26) =56a(27) =87a(28) =69a(29) =75