Expansion of q^(-1) * (phi(q^2) * phi(-q) / psi(-q^2)^2)^2 in powers of q where phi(), psi() are Ramanujan theta functions.

A233458

Expansion of q^(-1) * (phi(q^2) * phi(-q) / psi(-q^2)^2)^2 in powers of q where phi(), psi() are Ramanujan theta functions.

Terms

    a(0) =1a(1) =-4a(2) =12a(3) =-32a(4) =66a(5) =-128a(6) =232a(7) =-384a(8) =639a(9) =-1024a(10) =1596a(11) =-2496a(12) =3774a(13) =-5632a(14) =8328a(15) =-12032a(16) =17283a(17) =-24576a(18) =34520a(19) =-48288a(20) =66882a(21) =-91904a(22) =125568a(23) =-170112a(24) =229244a(25) =-307200a(26) =409236a(27) =-542912a(28) =716412a(29) =-941056

External references