Expansion of (psi(x^2) / psi(-x))^3 in powers of x where psi() is a Ramanujan theta function.

A001937

Expansion of (psi(x^2) / psi(-x))^3 in powers of x where psi() is a Ramanujan theta function.

Terms

    a(0) =1a(1) =3a(2) =9a(3) =22a(4) =48a(5) =99a(6) =194a(7) =363a(8) =657a(9) =1155a(10) =1977a(11) =3312a(12) =5443a(13) =8787a(14) =13968a(15) =21894a(16) =33873a(17) =51795a(18) =78345a(19) =117312a(20) =174033a(21) =255945a(22) =373353a(23) =540486a(24) =776848a(25) =1109040a(26) =1573209a(27) =2218198a(28) =3109713a(29) =4335840

External references