Expansion of q * psi(-q) * chi(-q^6) * psi(-q^9) / (phi(-q) * phi(-q^18)) in powers of q where phi(), psi(), chi() are Ramanujan theta functions.
A233693
Expansion of q * psi(-q) * chi(-q^6) * psi(-q^9) / (phi(-q) * phi(-q^18)) in powers of q where phi(), psi(), chi() are Ramanujan theta functions.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =3a(4) =4a(5) =6a(6) =8a(7) =11a(8) =14a(9) =18a(10) =24a(11) =30a(12) =38a(13) =48a(14) =60a(15) =75a(16) =92a(17) =114a(18) =140a(19) =170a(20) =208a(21) =252a(22) =304a(23) =366a(24) =439a(25) =526a(26) =626a(27) =744a(28) =884a(29) =1044
External references
- oeis: A233693