Expansion of q * (psi(q^4) / phi(-q))^2 in powers of q where phi(), psi() are Ramanujan theta functions.

A107035

Expansion of q * (psi(q^4) / phi(-q))^2 in powers of q where phi(), psi() are Ramanujan theta functions.

Terms

    a(0) =1a(1) =4a(2) =12a(3) =32a(4) =78a(5) =176a(6) =376a(7) =768a(8) =1509a(9) =2872a(10) =5316a(11) =9600a(12) =16966a(13) =29408a(14) =50088a(15) =83968a(16) =138738a(17) =226196a(18) =364284a(19) =580032a(20) =913824a(21) =1425552a(22) =2203368a(23) =3376128a(24) =5130999a(25) =7738136a(26) =11585208a(27) =17225472a(28) =25444278a(29) =37350816

External references