Expansion of (phi(q)^4 + 7 * phi(-q)^4) / 8 in powers of q where phi() is a Ramanujan theta function.

A228745

Expansion of (phi(q)^4 + 7 * phi(-q)^4) / 8 in powers of q where phi() is a Ramanujan theta function.

Terms

    a(0) =1a(1) =-6a(2) =24a(3) =-24a(4) =24a(5) =-36a(6) =96a(7) =-48a(8) =24a(9) =-78a(10) =144a(11) =-72a(12) =96a(13) =-84a(14) =192a(15) =-144a(16) =24a(17) =-108a(18) =312a(19) =-120a(20) =144a(21) =-192a(22) =288a(23) =-144a(24) =96a(25) =-186a(26) =336a(27) =-240a(28) =192a(29) =-180

External references