Expansion of q*psi(q^9)/psi(q) in powers of q.

Terms

a(0) =1a(1) =-1a(2) =1a(3) =-2a(4) =3a(5) =-4a(6) =5a(7) =-7a(8) =10a(9) =-12a(10) =15a(11) =-20a(12) =26a(13) =-32a(14) =39a(15) =-50a(16) =63a(17) =-76a(18) =92a(19) =-114a(20) =140a(21) =-168a(22) =201a(23) =-244a(24) =295a(25) =-350a(26) =415a(27) =-496a(28) =591a(29) =-696