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

A164617

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

Terms

    a(0) =1a(1) =1a(2) =4a(3) =10a(4) =20a(5) =39a(6) =76a(7) =140a(8) =244a(9) =415a(10) =696a(11) =1140a(12) =1820a(13) =2861a(14) =4448a(15) =6816a(16) =10292a(17) =15372a(18) =22756a(19) =33356a(20) =48408a(21) =69683a(22) =99600a(23) =141312a(24) =199036a(25) =278557a(26) =387608a(27) =536230a(28) =737632a(29) =1009464

External references