Expansion of q * (psi(q^3) * psi(q^6)) / (psi(q) * phi(q)) in powers of q where phi(), psi() are Ramanujan theta functions.

A228447

Expansion of q * (psi(q^3) * psi(q^6)) / (psi(q) * phi(q)) in powers of q where phi(), psi() are Ramanujan theta functions.

Terms

    a(0) =1a(1) =-3a(2) =7a(3) =-15a(4) =30a(5) =-57a(6) =104a(7) =-183a(8) =313a(9) =-522a(10) =852a(11) =-1365a(12) =2150a(13) =-3336a(14) =5106a(15) =-7719a(16) =11538a(17) =-17067a(18) =25004a(19) =-36306a(20) =52280a(21) =-74700a(22) =105960a(23) =-149277a(24) =208951a(25) =-290706a(26) =402127a(27) =-553224a(28) =757158a(29) =-1031166

External references