Expansion of b(-q) * b(q^2) in powers of q where b() is a cubic AGM theta function.

Terms

a(0) =1a(1) =3a(2) =-3a(3) =-15a(4) =-3a(5) =18a(6) =15a(7) =24a(8) =-3a(9) =-69a(10) =-18a(11) =36a(12) =15a(13) =42a(14) =-24a(15) =-90a(16) =-3a(17) =54a(18) =69a(19) =60a(20) =-18a(21) =-120a(22) =-36a(23) =72a(24) =15a(25) =93a(26) =-42a(27) =-231a(28) =-24a(29) =90