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

A187100

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